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Humidity HU Dial Indicators Thermohygrometer Thermohygrometer Wall Clock Easy-to-read dial indicators for both Clock displays time, humidity, and temperature temperature and humidity This attractive silver rim and black face multiparameter wall meter Monitor conditions of your lab, displays time, humidity, and office, or food storage area temperature. Easily view with this economical thermo- time, humidity, hygrometer. Displays in °F and °C. or temperature No batteries or external power from separate are required for operation. measurement dials. Temperature is displayed in °F and °C. What’s included: one AA battery.

35700-10 37803-25 Specifications & Ordering Information Specifications & Ordering Information

Response time: 1 minute Dimensions: 5" dia x 11/8"D Response time: 1 minute Power: one AA battery (included) Display: analog Display: analog Dimensions: 93/4" dia x 11/2"D Mode RH Temperature Mode RH Temperature Range 25 to 80% –4 to 104°F (–20 to 40°C) Range 0 to 100% –40 to 120°F (–40 to 50°C) Resolution 1% 2°F/1°C Resolution 0.1% 2°F/1°C ±5% from 25 to 70% Accuracy ±3.6°F/±2°C ±8% from 71 to 80% Accuracy ±3% of reading ±4°F (±2°C)

Catalog number Description Price Catalog number Description Price KH-35700-10 Thermohygrometer KH-37803-25 Thermohygrometer wall clock Accessories KH-09376-01 Replacement batteries, 1.5 V, AA. Thermohygrometer Pack of 4 EK-17030-20 Calibration service; NIST-traceable certificate, three with Large Dial humidity and one temperature test points Large 10" dial display allows you to view temperature from a distance Thermohygrometer View temperature conditions from a distance with the with Glass Thermometer big 10" diameter thermohygrometer. Features alcohol-filled This indicator features thermometer a dual temperature display in °F and °C. Use this indicator for RH No batteries or and temperature readings power required. in your lab, office, or computer room. Instrument requires no batteries or power. This indicator features a °F/°C thermometer.

35700-20 03313-70

Specifications & Ordering Information Specifications & Ordering Information

1 11 Response time: 1 minute Dimensions: 103/4" dia x 13/8"D Response time: 1 minute Dimensions: 4 /8" dia x /16"D Display: analog Display: analog Mode RH Temperature Mode RH Temperature Range 25 to 80% –22 to 122°F (–30 to 50°C) Range 20 to 99% –4 to 120°F (–20 to 50°C) Resolution 5% 2°F/1°C Resolution 1% 10°F (5°C) ±5% from 25 to 70% ±4% from 68 to 122°F (20 to 50°C), Accuracy ±3.6°F/±2°C Accuracy ±10°F (±5°C) ±8% from 71 to 80% ±5% outside this range

Catalog number Description Price Catalog number Description Price KH-35700-20 Thermohygrometer with large dial KH-03313-70 Thermohygrometer with glass thermometer

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HU Humidity Dial Indicators Brass Case Thermohygrometer with Thermohygrometers Digital Thermometer Provide fast, accurate measurements Switch-selectable °F or °C scale in a visually appealing brass case Easily mount this thermohygrometer Choose an indicator for % RH in your office, laboratory, measurement only; % RH and °F greenhouse, or food storage measurements; or % RH, °F, and °C environments. This measurements. All models have a thermohygrometer remains durotherm RH sensor that measures accurate and stable without relative humidity from 0 to 100% RH. maintenance or adjustments. Thermohygrometers feature a 03310-00 Case is constructed of bimetallic temperature sensor. corrosion-resistant ABS plastic. Models 03310-20 and 03310-40 What’s included: one AA battery, include a test certificate mounting bracket, and screws. ensuring conformance to 35700-00 stated specifications. All indicators have a solid brass Specifications & Ordering Information case, a 5" diameter glass face, 03310-40 and predrilled holes for wall mounting. Response time: 1 minute Power: one AA battery (included) Display Dimensions: 5" dia x 11/8"D Specifications & Ordering Information RH: analog 1 Response time: 1 minute Dimensions: 6" dia x 11/2"D Temperature: 3 /2-digit LCD, 0.50"H Display: analog Mode RH Temperature Catalog number KH-03310-20 KH-03310-00 KH-03310-40 Mode %RH %RH, °F %RH, °F/°C Range 20 to 100% 0 to 160°F (–18 to 72°C) Range 0 to 100% Resolution 2% 0.1°F (0.1°C) RH Resolution 1% 2% 2% RH Accuracy ±4%, 20 to 90%; ±8%, 90 to 100% ±1.8°F (±1.0°C) Accuracy ±3% (35 to 95%), ±5% (<35%, >95%) Range — 10 to 170°F 10 to 170°F (–12 to 76°C) Catalog number Description Price Temp Resolution — 5°F 5°F (2°C) KH-35700-00 Thermohygrometer with digital thermometer Accuracy — ±1% full-scale ±1% full-scale Price EK-17030-20 Calibration service; NIST-traceable certificate, three humidity and one temperature test points KH-09376-01 Replacement batteries, AA. Temperature/Humidity/Process Dataloggers Humidity Card l Compact, rugged housing guarantees operation in busy or rugged areas! Card indicates both the current humidity and Automatically log up to the maximum humidity attained! 16,000 temperature (°F or l °C) and humidity (%RH) Non-reversible maximum humidity indicator is perfect measurement readings for for packaging and shipping months, then download l NIST-Traceable data to your computer or Easy-to-read card is ideal for use printer. Sample from once with bottles, chemicals, plastic per 10 seconds to once per bags, electronics, desiccators, 2 hours—built-in clock and and storage containers. calendar track your data Maximum range (highest in real time. Dataloggers humidity attained when exposed require software for 24 hours or more) is 50 to 35710-50. Kits include 90% RH—orange dot indicator datalogger, software, 35710-00 changes to yellow in increments and cable. of 10% RH. Maximum memory Model Model range is readable to an accuracy Specifications & Ordering Information 35710-00 35710-10 of ±5% RH at 75°F (24°C). Power: 3.6 V lithium battery (included) Reversible current humidity (0 to 100% RH) changes color 03313-06 Dimensions: 1"D x 23/4" dia from blue to bright pink in Parameters No. of channels Range Display increments of 10% RH; accuracy of ±2.5% RH at 75°F (24°C). Card Temperature One internal, –22 to 122°F (–30 to 50°C) 2-digit LCD; arrives ready for use—each card is individually sealed in a clear Humidity one external 0 to 100% RH 3⁄8"H moisture-barrier bag with desiccant to keep the card dry and Dataloggers Datalogger kits provide for an extended shelf life. Description Cat. no. Price Cat. no Price What’s included: NIST-traceable certificate. Temperature EK-35710-00 EK-35710-60 Temperature/RH EK-35710-10 EK-35710-62 EK-35710-50 Microlab software and 8-ft cable. Set sampling rate; Specifications & Ordering Information view data graphically; store/export data in spreadsheet format Catalog number Description Size Qty/pk Price/pk ® (CD-ROM). Windows 95/98/2000/NT compatible KH-03313-06 NIST-traceable humidity card 4"W x 4"H 6

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Humidity HU Psychrometers Pocket Sling Psychrometers

Take this pocket-sized unit with you anywhere! 03322-00 A low-cost To operate psychrometer, withdraw thermometer halfway out of case, then moisten wick. Holding the case as a handle, swing instrument for the psychrometer for two minutes. Read wet and dry bulb wet bulb, dry bulb, temperatures, then reinsert thermometer slide into case. The and RH slide and case form a slide rule for calculating RH. Choose °F or °C models. The °F models are available with either mercury- or spirit-filled thermometers—use spirit-filled model in mercury-free environments. Specifications & Ordering Information Catalog number KH-03322-00 KH-03322-10 KH-03322-20 Description °F mercury filled °C mercury filled °F spirit filled Accessories Range 10 to 100% RH Resolution 2% KH-03322-50 Replacement glass thermometers, Accuracy ±3% 20 to 120°F, mercury-filled. Pack of two Range 20 to 120°F –5 to 50°C 20 to 120°F KH-03322-60 Replacement glass thermometers, Temp Resolution 1°F 0.5°C 1°F –5 to 50°C, mercury-filled. Pack of two Accuracy ±1°F ±0.5°C ±1°F Dimensions 13⁄8"W x 81⁄4"H x 5⁄8"D (when closed) KH-03322-70 Replacement glass thermometers, Price 20 to 120°F, spirit-filled. Pack of two KH-03322-82 Replacement wicks, 200-mm. Pack of six Sling Psychrometer Classic twirling design This psychrometer is fast, accurate, and easy to use. Features an environmentally friendly red spirit mercury-free thermometer, ABS construction, and an extra large handle. To operate, simply moisten the wick, twirl the psychrometer for two minutes, and then read the wet and dry bulb temperatures. Use the instructions and conversion chart supplied in order to calculate the relative humidity. (Available in °C only.) 03322-90 What’s included: two thermometers, one wick, conversion chart, and carrying case. Specifications & Ordering Information Response time: 2 minutes Power: hand operated Display: thermometers Dimensions: 13⁄4"W x 81⁄2"H x 1"D Catalog number KH-03322-90 Accessories Range 10 to 100% RH Resolution 2% KH-03322-91 Replacement kit contains one wick and two glass red Accuracy ±3% spirit thermometers Range 0 to 50°C EK-17005-00 Calibration service; NIST-traceable Temperature Resolution 0.1°C Accuracy ±0.3°C Price

Humidity Calculator and Mason Hygrometer Calculate relative humidity with wet and dry bulb temperatures Humidity calculator (03311-00) matches wet and dry bulb temperatures on a slide scale for humidity values. Calculator features recommended humidities needed to achieve ideal conditions for industry processes. 03311-00 Mason hygrometer (03311-02) features two red spirit filled thermometers contained within a sturdy plastic case. Included chart converts wet and dry bulb temperatures to humidity values. Dual temperature scales range from 0 to 120°F (–15 to 50°C).

Specifications & Ordering Information

Catalog number Description Dimensions Price 03311-02 KH-03311-00 Humidity slide calculator 7"W x 2"H x 1⁄16"D KH-03311-02 Mason hygrometer 23⁄4"W x 121⁄4"H x 3⁄4"D

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HU Humidity Psychrometers/Digital Indicators Psychrometers Thermohygrometer with Remote Probe Meter displays psychrometric chart Temperature/RH sensor with 7-ft cable allows remote readings l Alarm sounds when user-selected temperature or RH parameters are exceeded Display shows current, min/max temperatures or RH readings. Toggle between temperature and RH displays with the press of a button. 03312-20 Other features include selectable °F/°C display Psychrometers measure relative humidity without agitation. and memory clear. To use, turn on the fan and let it run for 11/2 to 2 minutes. Then, Monitor has built in subtract wet bulb reading from dry bulb reading, and use the stand, or can be wall included slide rule and tables to calculate the RH. Fan is powered mounted. by three size D batteries (order separately below). What’s included: What’s included: one 2-oz water bottle, psychrometric slide rule, remote temperature/RH 90081-00 tables, chart, extra lamp, extra wicking material, and carrying case. sensor with 7-ft cable, Specifications & Ordering Information and one AAA battery. Thermometer type: two 87/8" mercury-filled glass thermometers Specifications & Ordering Information Power: three D batteries (sold separately below) Response time: 2 minutes Power: one AAA battery (included) 1 2 Dimensions: 10"W x 4 / "H x 2"D Display: multi-line LCD Dimensions: 41/8"W x 23/4"H x 3/4"D Catalog number KH-03312-20 KH-03312-40 Mode RH Temperature Range 10 to 100% Range 20 to 99% –14 to 122°F (–10 to 50°C) RH Resolution 1% Resolution 1% 0.1°F or °C Accuracy ±3% full-scale Accuracy ±4% full scale ±2°F (±1°C) Range 10 to 120°F –15 to 45°C Temp Resolution 1°F 0.5°C Catalog number Description Price Accuracy ±0.3°F ±0.2°C KH-90081-00 Thermohygrometer with remote probe Price KH-09376-03 Batteries; D. Pack of four KH-03312-25 Replacement glass thermometers for model 03312-20 KH-03312-45 Replacement glass thermometers for model 03312-40 Thermohygrometer with Alarm Mini Thermohygrometer Alarm actuates when parameter limits are exceeded This monitor displays Compact design allows monitoring in small spaces current and min/ max measurements Monitor temperature and of temperature or humidity conditions in humidity. Program desiccators, incubators and temperature and environmental chambers. humidity limits Simultaneously display to activate an current temperature and audible alarm when humidity conditions or recall parameters are temperature and humidity exceeded—perfect min/max measurements. Set for parameter specific min/max function to reset monitoring. Other every 24 hours or manually features include 90081-04 reset when appropriate. LCD selectable °F/°C and displays current conditions as memory clear function. “comfort", “wet”, or “dry.” 90081-02 What’s included: one AAA battery. What’s included: one LR44 battery. Specifications & Ordering Information Specifications & Ordering Information Response time: 2 minutes Power: one LR44 battery (included) Response time: 2 minutes Power: one AAA battery (included) Display: 4-digit LCD Dimensions: 17/8"W x 21/4"H x 3/8"D Display: 3-digit LCD Dimensions: 41/8"W x 23/4"H x 3/4"D Mode RH Temperature Mode RH Temperature Range 20 to 99% 23 to 122°F (–10 to 50°C) Range 20 to 99% –4 to 158°F (–20 to 70°C) Resolution 1% 1°F or C Resolution 1% 0.1°F or C ±6% from 30 to 60% at 25°C; ±6% from 20 to 60%; ±2°F (1°C) from –4 to 122°F (–20 to 50°C); Accuracy ±2°F (1°C) Accuracy ±8% from 60 to 99% at 25°C ±8% from 60 to 99% ±3°F (1.5°C) above 122°F (50°C)

Catalog number Description Price Catalog number Description Price KH-90081-02 Mini thermohygrometer KH-90081-04 Thermohygrometer with alarm

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Humidity HU Digital Indicators Thermohygrometer Clock Simultaneously displays time, humidity, and temperature Place unit on your desk or mount on the wall. Push Specifications & Ordering Information min/max button to view Response time: approx. 5 minutes Power: one AAA battery (included) minimum and maximum Display Dimensions: 23/4"W x 49/16"H x 9/16"D measurements. Clock displays RH: 2-digits 12-hour time with a.m./p.m. Temperature: 21/2-digits indicator when in °F mode, and 24-hour time when in Mode RH Temperature °C mode. Range 10 to 99% 14 to 140°F (–10 to 60°C) What’s included: one AAA Resolution 1% 0.1°F (0.1°C) Accuracy ±6% from 25 to 80% ±3°F (±2°C) battery. Catalog number Description Price KH-37802-00 Thermohygrometer clock KH-09376-00 Replacement batteries; 1.5V, AAA. Pack of 12 37802-00 EK-17030-50 Humidity certificate of accuracy Digital Thermohygrometer with Dew Point and Alarm Audible/visual alarm indicates if humidity exceeds set point Specifications & Ordering Information The meter warns users of environmental conditions Response time: 1 minute Power: one AAA battery (included) that are out of a desired Display: triple LCD Dimensions: 4"W x 4"H x ¾"D range. Features include a super large, triple display Range 10 to 99% RH Resolution 1% for relative humidity, Accuracy ±4% of reading temperature, and dew Range 14 to 140°F (–10 to 60°C) point; min/max with reset Temperature Resolution 0.1°F (0.1°C) function; built-in stand for Accuracy ±1.8°F (±1°C) sitting on a desk; and hardware Dew point Included* for mounting on a wall. The humidity/temperature probe Catalog number Description Price is connected to an 18"L KH-37803-26* Thermohygrometer with dew point and alarm cable and can be clipped *Meter takes the information gathered from the sensors and calculates dew point. onto the meter. Calibration adjustments allow in-house KH-37803-19 Calibration salt, 33% RH calibration using optional KH-37803-20 Calibration salt, 75% RH 37803-26 standards. EK-17030-50 Humidity certificate of accuracy What’s included: sensor probe, KH-09376-00 Replacement batteries; 1.5V, AAA. mounting bracket, and one AAA battery. Pack of 12

Wireless Thermohygrometer Monitor temperature and humidity from up to 100 feet Specifications & Ordering Information away Response time: 30 seconds Power This wireless kit displays Transmission interval: 2 minutes Receiver: two AA batteries Remote sensor: two AA batteries temperature and humidity Frequency band: 434 MHz (batteries not included) min/max readings for both the Display Dimensions receiver and remote sensor. Receiver: dual-line, 4-digit LCD Receiver: 5"W x 31/2"H x 11/4"D LCD indicates condition trends Remote sensor: dual-line, 2-digit LCD with increasing, decreasing or Remote sensor: 31/4"W x 3"H x 1"D steady arrows. The receiver 37100-33 Mode RH Temperature accepts signals from up to three Range 20 to 99% –4 to 140°F (–20 to 60°C) remote sensors. Detachable Resolution 1% 0.1°F/°C cable probe allows for liquid Accuracy ±4% ±2°F (1°C) measurements. Order batteries separately below. Catalog number Description Price Remote sensor KH-37100-33 Wireless thermohygrometer What’s included: one (included) remote sensor and KH-37100-83 Additional remote sensor detachable cable probe. KH-09376-02 Replacement batteries; 1.5 V, AA. Pack of four

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HU Humidity Digital Indicators Digital Thermohygrometers Monitor temperature and humidity conditions in labs, offices, and storage areas

C A Thermohygrometer with Minimum/ Thermohygrometer Maximum Function This temperature/humidity indicator shows the exact air conditions Thermohygrometer displays in labs, hoods, stock rooms, and temperature compensated relative more. LCD also indicates “comfort,” humidity in % RH, and temperature “humid,” or “dry” conditions. in °F or °C. Stores minimum and maximum RH and temperature ABS plastic case is chemically readings—just press the front-panel ­resistant and shock-resistant. MIN and MAX buttons to read stored Thermohygrometer requires no values. Press the RESET button to ­adjustment or maintenance. Mount continue displaying current RH on the wall or place on a surface and temperature conditions. with included bench stand. Includes NIST certificate. Thermohygrometer features an integral stand for easy desktop viewing and a wall mounting bracket. 03313-85 Includes NIST certificate. 37101-00

B Jumbo Display Thermohygrometer D Digital Thermohygrometers This thermohygrometer is perfect Mount these for both indoor and outdoor thermohygrometers applications. Large, 11/8" display on a wall or flip out can be read as far as 35 feet away! the stand to use Thermohygrometer includes a them on your submersible temperature sensor desktop. on a 10-ft cable and one AAA Choose either a °F battery. Unit features ABS plastic or a °C model. Use housing. Wall-mount the two AAA batteries thermohygrometer or use the (included) for flip-open stand. Includes NIST temperature and 37100-06 certificate. humidity readout.

03313-86

EK-17030-50 Humidity certificate of accuracy documents that the humidity instrument is performing to specifications

Specifications & Ordering Information

Key letter A B C D D Catalog number KH-03313-85 KH-03313-86 KH-37101-00 KH-37100-06 KH-37100-16 Range 25 to 95% 25 to 95% 25 to 95%† 20 to 95% Resolution 1% 1% 1% 1% from 30 to 83%; max 3% for remainder of range RH ±10% from 20 to 34%; ±5% from 40 to 80% ±2% at 60%, ±5% from 40 to 80%, Accuracy ±5% from 35 to 75%; ±7% for remaining range ±4% for remaining range 7% for remaining range ±8% from 76 to 95% Range 32 to 122°F (0.0 to 50°C) 32 to 122°F (0 to 50°C)* 32 to 122°F (0 to 50°C) –58 to 158°F –50 to 70°C Resolution 0.1°F (0.1°C) 1°F (1°C) 1°F (1°C) 0.1°F 0.1°C Temp ±3.6°F from –58 to 29°F; ±2°C from –50 to –1°C ±1.8°F 2°F ±2°F (±1°C) from 32 to 104°F, ±1.8°F from 30 to 104°F ±1°C from 0 to 40°C Accuracy (±1°C) (1°C) ±4°F (±2°C) for remaining range ±3.6°F from 105 to122°F ±2°C from 41 to 50°C ±5.4°F from 123 to 158°F ±3°C from 51 to 70°C Response time 30 seconds to 3.5 minutes Dependent upon airflow 8 seconds Maximum 1 minute for both temperature and humidity RH: 2-digit LCD, 5⁄8"H RH: 2-digit LCD, 11⁄8"H RH: 2-digit LCD, 5⁄8 "H RH: 2-digit LCD, 3⁄4"H Display Temp: 31⁄2-digit LCD, 5⁄8"H Temp: 3-digit LCD, 11⁄8"H Temp: 21⁄2-digit LCD, 5⁄8"H Temp: 31⁄2-digit LCD, 3⁄4"H Two AA batteries One AAA battery Two AAA batteries Power Two AAA batteries (included) (included) (included) (included) Dimensions 31⁄2"W x 5 "H x 1"D 4"W x 21⁄2"H x 1⁄2"D 25⁄8"W x 33⁄4 "H x 5⁄8"D 53⁄8"W x 21⁄2"H x 5⁄8"D Price Repl. batteries KH-09376-01 KH-09376-00 KH-09376-00 KH-09376-00 KH-09376-00 Price *Measuring range of only the unit. Measuring range of probe is –58 to 158°F (–50 to 70°C). †RH range at temperatures from 59 to 104°F.

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Humidity HU Digital Indicators Humidity/Temperature Chart Recorder Ideal for monitoring controlled environments such as food processing, cleanrooms, and storage areas l Stores up to 49,000 readings with date and time l Adjustable stand allows for wall mounting or desktop placement l Detachable probe extends up to 3 feet for use in closed environments Paperless chart recorder provides simultaneous digital and graphical display of relative humidity and temperature. The display also shows dew point, date and time, and min/max measurements. The update time can be selected from 0.1 minute to 33 hours. Stores up to 49,000 complete time- and date-stamped reading sets, which can be recalled on the graphical display or downloaded onto a PC with the included RS-232 cable and software. The user can set audible and visual alarms with high and low limits for humidity and temperature. Use optional relay 37803-28 to activate an external warning device. The control panel can swivel to act as a desk stand or mount to a wall. 37803-27 What's included: detachable probe with 3-ft cable, RS-232 cable, software, 120 VAC adapter, and three AA batteries. Specifications & Ordering Information Catalog number Description Price Humidity/temperature Response time: 1 minute Power: three AA batteries or 120 VAC adapter (included) KH-37803-27 chart recorder Display: dual LCD graphical display Dimensions: 5"W x 7 3⁄4"H x 1"D Accessories Mode RH Temperature Range 10 to 95% 14 to 140°F (–10 to 60°C) KH-37803-28 Alarm relay. Use to activate Resolution 1% 0.1°F (0.1°C) an external warning device Accuracy ±3% of reading ±1.8°F (±1°C)

Panel-Mount Humidity Monitors Monitor humidity measurements in a panel mount design Measure humidity levels from 500 to 1000 feet away with your choice of three sensors sold separately below. Wall mount sensor (37406-50) features an off-white vented case for indoor use up to 1000 feet away. Duct-mount sensor (37406-52) features a filtered sensor element specifically for ductwork up to 500 feet away. Outdoor sensor (37406-54) features a water-resistant enclosure for surface mounting up to 500 feet away. Humidity Indicator Convenient snap-in, panel-mount installation allows accurate monitoring of humidity Indicator 37406-00 levels. The scratch-resistant lens provides protection in the most demanding environments. Indicator fits into a 3.1"W x 1.35"H panel cut out. Humidity Alarm This humidity alarm features a 1-amp relay output and a 24 VAC alarm output to actuate a status indicator. Audible and visual alarms actuate when set points are exceeded. Program high and low alarm set points, alarm delay (either 0 or 45 minute delay), manual or auto alarm reset, and alarm silencer (no alarm, 5 or 45 minute silencer). Alarm stores min and max humidity levels until reset. Unit designed to fit into a 2" x 4" junction box. Humidity Controllers These humidity controllers feature SPDT relay(s) rated at 4 amps, programmable set points, differentials, relay status LEDs, and field calibration mode. Indicator fits into a 3.1"W x 1.35"H panel cut out. Specifications & Ordering Information Range: 10 to 95% RH Accuracy: ±3% RH Alarm 37406-20 Resolution: 1% RH Display: 2-digit LED, 9/16"H Catalog number Relays Power Dimensions Price Humidity indicator KH-37406-00 — 24 VAC 3"W x 11⁄3"H x 21⁄4"D Humidity alarm KH-37406-20 One 24 VAC; 9 V battery back-up (not included) 21⁄2"W x 41⁄4"H x 1"D Humidity controller KH-37406-10 One 24 VAC 3"W x 11⁄3"H x 21⁄4"D KH-37406-50 Wall-mount humidity sensor KH-37406-52 Duct-mount humidity sensor Controller 37406-10 KH-37406-54 Outdoor humidity sensor

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HU Humidity Thermohygrometer Pens Thermohygrometer Pen Pocket size with quick and reliable measurements Pen displays relative humidity and temperature simultaneously. Min/max function displays and holds the maximum humidity and temperature values since power-up in memory; simply press the clear button to reset. Features an on/off button and selectable °F/°C temperature mode. What’s included: one battery and pocket clip. 37803-14 Specifications & Ordering Information Response time: 8 seconds Power: one CR2032 lithium battery (included) Catalog Description Price Display: LCD Dimensions: 1"W x 6"H x 3⁄4"D number Mode RH Temperature KH-37803-14 Humidity/temperature pen Range 20 to 90% 14 to 122°F (–10 to 50°C) Resolution 0.10% 0.1°F (0.1°C) Accessories Accuracy ±5% of reading ±2°F (±1°C) EK-17030-50 Humidity certificate of accuracy

Digital Thermohygrometer Pen with Calibration Built-in self calibration utility with optional RH calibration bottles Pen displays relative humidity and temperature simultaneously on a large LCD. Features include a choice of readings in °F and °C, min/max recall, and data hold. Meter can be calibrated in the field using optional calibration kit 37803-17, which contains 33% and 75% humidity standards. 37803-16 What’s included: one battery and pocket clip. Specifications & Ordering Information

Response time: 8 seconds Power: one CR2032 lithium battery (included) Cat. no. Description Price 3 3 Display: dual-line, 3-digit LCD (2 displays) Dimensions: 5 ⁄4"W x 1"H x 1 ⁄16"D Digital thermohygrometer pen KH-37803-16 with calibration Mode RH Temperature Range 10 to 90% 32 to 122°F (0 to 50°C) Accessories Resolution 0.10% 0.1° F (0.1°C) Accuracy ±5% of reading ±1.8°F (±1.0°C) KH-37803-17 Calibration kit and carrying case KH-09376-17 Replacement batteries, 3 V CR2032. Pack of 6

Digital Thermohygrometer Pen with Dew Point and Heat Index Ideal for monitoring environmental conditions within the workplace l Compact size allows for convenient storage Meter features min/max memory with rest, data hold, °F/°C reading, and auto shutoff with low-battery indicator. A large LCD displays RH, temperature, dew point, and heat index readings. Audible alarm and visible danger icon indicate when the heat index is at a dangerous level. 37401-01 What’s included: pocket clip and one lithium battery.

Specifications & Ordering Information

Response time: 60 seconds Power: one 3 V, CR2032 lithium battery (included) Cat. no. Description Price 1 3 Display: dual-line, 3 -digit LCD (2 displays) Dimensions: 1 ⁄2"W x 6 ⁄4"H x 1"D Digital thermohygrometer pen KH-37401-01 Heat index range: 32 to 115°F (0 to 46°C) with dew point and heat index Mode RH Temperature Dew point Accessories Range 0 to 100% –4 to 122°F (–20 to 50°C) –22 to 122°F (–30 to 50°C) Resolution 0.10% 0.1°F (0.1°C) 0.1°F (0.1°C) EK-17030-50 Humidity certificate Accuracy ±5% full-scale ±1.8°F (±1°C) ±3% full-scale of accuracy

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Humidity HU Digital Thermohygrometers Thermohygrometer with Calibration Optional thermistor probe lets you calculate T1–T2 differential Compact meter displays relative humidity and temperature simultaneously, along with dew point or wet bulb or probe temperature on a large LCD. Features include a choice of readings in °F or °C, min/max, data hold, and auto power off. Unique sensor cap closes to protect the sensor during storage. Advanced features include the calculation of T1-T2 temperature differential with external temperature probe 37803-18 (sold separately). Meter can be calibrated in the field using optional RH calibration standard salts. Order meter only or the complete thermohygrometer kit. What’s included: two AAA batteries. Kit 37803-11 also includes meter 37803-10, 37803-11 temperature probe 37803-18, RH calibration standard salts 37803-19/-20, and carrying case. 37803-10 Specifications & Ordering Information Response time: 8 seconds Power: two AAA batteries (included) Catalog number Description Price Display: triple LCD Dimensions: 2"W x 7"H x 1"D KH-37803-10 Thermohygrometer Range 10 to 90% KH-37803-11 Thermohygrometer kit RH Resolution 0.10% KH-37803-18 Thermistor temperature probe Accuracy ±3% of reading Range –4 to 122°F (–20 to 50°C) KH-37803-19 Calibration salt, 33% RH Temperature Resolution 0.1°F (0.1°C) KH-37803-20 Calibration salt, 75% RH Accuracy ±1.8°F (±1.0°C) KH-09376-00 Replacement batteries, AAA. Pack of 12 Dew point Included* Wet bulb Included* *Meter takes the information gathered from the sensors and calculates dew point and wet bulb. Superheat Thermohygrometer with Calibration Features dual type K external temperature probe inputs l Datalogging capacity stores up to 99 data records Advanced Superheat feature calculates the differential temperature measurements between T1–T2, or air–T1, or dew point–T1. Compact design is ideal for field applications— it displays relative humidity and temperature simultaneously along with dew point or wet bulb or probe temperature on a large triple display with backlighting. Features include a choice of readings in °F or °C, min/max, average function, data hold, RS-232 interface, datalogger, real-time clock, and auto power off. Unique sensor cap closes to protect the 37803-13 sensor during storage. Meter can be calibrated in the field using optional RH calibration 37803-12 standard salts. Order meter only or the complete thermohygrometer kit. What’s included: two type K temperature probes and four AAA Specifications & Ordering Information batteries. Kit 37803-13 also includes meter 37803-12, two type K temperature probes 37803-21, RH calibration standard salts Catalog number Description Price 37803-22/-23, RS-232 cable 37803-24, and carrying case. KH-37803-12 Superheat thermohygrometer KH-37803-13 Superheat thermohygrometer kit Range 10 to 90% KH-37803-21 Thermocouple temperature probe, type K RH Resolution 0.10% Accuracy ±3% of reading KH-37803-22 Calibration salt, 33% RH Range –4 to 122°F (–20 to 50°C) KH-37803-23 Calibration salt, 75% RH Temperature Resolution 0.1°F (0.1°C) KH-37803-24 RS-232 cable Accuracy ±1.8°F (±1.0°C) Dew point Included* KH-09376-00 Replacement batteries, AAA. Pack of 12 Wet bulb Included* *Meter takes the information gathered from the sensors and calculates dew point and wet bulb. Specifications & 37461–00 180° Ordering Information Humidity Sticks Response time: 15 seconds Power: 3 V battery (included) Display: 31/2-digit LCD, 13/8"H Probe dimensions: 45/16"L x 15/32" dia Ideal for quick monitoring Catalog number KH-37461-00 KH-37461-05 in hard-to-reach locations Range 5.0 to 95.0% 0 to 100% l Head swivels 180°—allows easy RH Resolution 0.1% Accuracy ±3% ±2% viewing at any angle Range –4 to 160°F (–20 to 70°C) These humidity sticks are small enough 37461-00 Temperature Resolution 0.1°F (0.1°C) to fit in your pocket. They feature a single Accuracy ±0.9°F (±0.5°C) ±0.5°F (±.3°C) button to switch from temperature, Range –5 to 140°F (–20 to 70°C) — humidity and dew point or wet bulb. Dew point Resolution 0.1°F/C — † The water-resistant sensor protects from Accuracy ±1°F/C — condensation, and a sensor cap rotates to Range — –5 to 140°F (–20 to 70°C) Wet bulb Resolution — 0.1°F/°C protect from damage. Auto-off preserves † battery life. Accuracy — ±1°F/°C Price What’s included: multi-purpose clip, duct †Accuracy at 20 to 85% RH. holder, and battery. EK-17030-20 Calibration service; NIST-traceable certificate, three humidity and one temperature test points

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HU Humidity Digital Thermohygrometers Thermohygrometer with Infrared Thermometer Three tools in one—measure temperature, humidity, and infrared temperature l Laser pointer improves infrared aim and accuracy Thermohygrometer simultaneously displays humidity and probe or infrared temperature. For high temperature applications or measurements in hard-to-reach areas, use the infrared thermometer. The meter has a low-light backlit display and a low battery indicator, with an auto off function. Features switchable ºF/ºC units, separate MAX and HOLD buttons for temp/humidity and infrared measurements, and out-of-range indicators. What’s included: protective holster, built-in stand, and one 9 V battery.

Specifications & Ordering Information Response time: 8 seconds Power: one 9 V battery (included) Emissivity: 0.95 Dimensions Distance-to-target ratio: 8:1 Meter: 3"W x 6"H x 11/2"D 1 1 Display: dual-line LCD Probe: 6 /2"L x /2" dia Mode RH Temperature Infrared temperature –4 to 140°F Range 35 to 95% –58 to 932°F (–50 to 500°C) (–20 to 60°C) 0.1° from –58 to 199°F (–50 to 93°C); 37803-02 Resolution 0.1% 0.1°F/C 1° from 200 to 932°F (94 to 500°C) Accuracy ±5% at 77°F ±2°F (±1.8°C) ±2%, ±2°F (1.8°C)

Catalog number Description Price KH-37803-02 Thermohygrometer with IR thermometer

Compact Thermohygrometer with Infrared Thermometer Monitor relative humidity, temperature, wet bulb, and dew point l Meter can be calibrated in the field using optional salt standards

Thermohygrometer simultaneously displays relative humidity, surface temperature and air temperature, dew point, or wet bulb on a triple LCD with backlighting. IR thermometer features a built-in laser pointer, adjustable emissivity of 0.3 to 1.0, and a spot/distance ratio of 8:1. The meter calculates the temperature difference between IR surface temperature and dew point. Other features include data hold, programmable auto power 37803-29 off, low-battery indicator, over/under range alert, and a retractable probe that protects the humidity sensors when not in use. Optional RS-232 cable (37803-31) allows downloads onto PC. Order meter only or the complete thermohygrometer kit. What’s included: four AAA batteries and carrying case. Kit 37803-30 also includes meter 37803-29, RH calibration standard salts 37803-32/-33, and RS-232 cable 37803-31. 37803-30 Specifications & Ordering Information

Response time: 8 seconds Power: four AAA batteries (included) Cat. no. Description Price Display: triple LCD, backlit Dimensions: 23⁄4"W x 63⁄4"H x 17⁄8"D Compact thermohygrometer KH-37803-29 with infrared thermometer Range 0 to 100% Complete thermohygrometer kit RH Resolution 0.10% KH-37803-30 Accuracy ±3% from 10 to 90% RH with infrared thermometer Range –4 to 122°F (–20 to 50°C) Temperature Resolution 0.1°F (0.1°C) Accessories Accuracy ±1.8°F (±1.0°C) KH-37803-19 Calibration salt, Range –40 to 932°F (–40 to 500°C) 33% RH IR temperature Resolution 0.1°F (0.1°C) Accuracy ±1.8°F (±1.0°C) KH-37803-20 Calibration salt, Dew point Included* 75% RH Wet bulb Included* KH-37803-31 RS-232 cable *Meter takes the information gathered from the sensors and calculates dew point and wet bulb. EK-17030-50 Calibration service; certificate of accuracy KH-09376-00 Replacement batteries, AAA. Pack of 12

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Humidity HU Digital Thermohygrometers Compact Thermohygrometer Slim design with built-in sensor for one-handed operation Meter utilizes a thin film capacitance sensor for humidity and a semiconductor sensor Specifications & Ordering Information for temperature measurements. Compact Response time: 3 sec, sample Power: one 9 V design is ideal for field applications, rate 2.5 times/sec battery (included) displays relative humidity or temperature Display: 31⁄2-digit LCD Dimensions: 23⁄4"W x 105⁄8"H x 1"D on large LCD. Features data hold, °F/°C selectable reading, and analog output Mode RH Temperature signal (10 mV/1% RH or 1°F/°C) for use with Range 10 to 95% 4 to 140°F (20 to 60°C) a chart recorder. Fast response time of less Resolution 0.10% 0.1°F (0.1°C) than 3 seconds, with a sampling rate of 2.5 Accuracy ±3% from 30 to 95% RH ±1.5°F (±0.8°C) times per second. Cat. no. Description Price What’s included: one 9 V battery KH-37803-32 Compact thermohygrometer and carrying case. Accessories 37803-32 EK-17030-20 Calibration service; NIST-traceable certificate, three humidity and one temperature test points Precision Thermohygrometer with Dew Point and Wet Bulb Specifications & Ordering Information Measures relative humidity with ±2% accuracy Response time: 3 seconds Power: one 9 V battery (included) Precision capacitance humidity sensor Display: dual-line LCD, backlit Dimensions: 23⁄4"W x 105⁄8"H x 1"D offers fast response. Slim design with Range 0 to 100% rubberized sides for better grip and easy, Resolution 0.10% RH one-handed operation. The dual LCD ±2% 20 to 90% RH, ±3% 10 to 20% Accuracy provides simultaneous display of humidity and 90 to 95%, ±4% rest of range and temperature, or humidity and dew Range 4 to 140°F (20 to 60°C) point, or humidity and wet bulb. Advanced Temperature Resolution 0.1°F (0.1°C) features include data hold, min/max Accuracy <±1.8°F (±1°C) readings, low-battery indication, and auto Dew point Included* power off. Wet bulb Included*

What’s included: one 9 V battery Cat. no. Description Price and carrying case. Precision thermohygrometer KH-37803-33 with dew point and wet bulb *Meter takes the information gathered from the sensors and calculates dew point and wet bulb. Accessories 37803-33 EK-17030-20 Calibration service; NIST-traceable certificate, three humidity and one temperature test points 971 Thermohygrometer Specifications & Ordering Information Response time: 500 ms Power: four AAA batteries (included) Ergonomically designed meter with Display: dual-line, 3-digit LCD, backlit Dimensions: 21⁄2"W x 71⁄2"H x 11⁄4"D datalogger (2 displays) l Calculates dew point and wet bulb Range 5.0 to 95.0% l Use as part of regular HVAC maintenance RH Resolution 0.10% Accuracy ±2.5% from 10 to 90%; ±10 for remaining range The Fluke 971 meter is built for field use Range –4 to 1140°F (–20 to 60°C) with an impact-resistant housing, rugged Resolution 0.2°F (0.1°C) Temperature holster, convenient belt clip, and bright ±1.0°F from 32 to 113°F, ±2.0°F for remaining range Accuracy backlit display. Includes °F/°C selection, (±0.5°C from 0 to 45°C, ±1.0°C for remaining range) min/max reading, hold feature, averaging Dew point Included* function, and 99-record datalogging Wet bulb Included* capacity. A large LCD simultaneously displays RH and temperature readings, Catalog number Description Price along with calculating dew point KH-37851-20 Fluke 971 thermohygrometer and wet bulb. *Meter takes the information gathered from the sensors and calculates dew point and wet bulb. What’s included: four AAA batteries 37851-20 Accessories EK-17030-20 Calibration service; NIST-traceable certificate, three humidity and one temperature test points

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HU Humidity Digital Thermohygrometers Compact Waterproof Digital Thermohygrometers Ideal for use in harsh environments including the food industry l IP67-rated housing and keypad l IP40-rated humidity sensor 37851-10 l Thermistor temperature probe l Compact size allows for convenient storage These meters feature a robust impact-resistant ABS housing, °F/°C selection, user- defined measuring rate of 1 to 15 seconds, battery life indicator, and auto shutoff. A large LCD simultaneously displays RH and temperature readings. Model 37851-11 also includes a remote sensor probe, wet bulb (calculated), dew point (calculated), along with min/max and hold buttons. What’s included: one lithium battery. Specifications & Ordering Information Response time: 1 to 15 seconds Dimensions Display: 3-digit LCD (2 displays) Housing: 21⁄4"W x 41⁄2"H x 3⁄4"D External probe: 6"L x 3⁄4"dia Power: one 3 V, 5-year lithium battery (included) External cable: 41⁄2"L Catalog number KH-37851-10 KH-37851-11 Probe type Internal probe External probe Range 5.0 to 95.0% 0 to 100% RH Resolution 0.10% 0.10% Accuracy ±3% ±2% Range –4 to 160°F (–20 to 70°C) –4 to 160°F (–20 to 70°C) 37851-11 Temperature Resolution 0.1°F (0.1°C) 0.1°F (0.1°C) Accuracy ±0.9°F (±0.5°C) ±0.5°F (±.3°C) Dew point — Included* Wet bulb — Included* Price *Meter takes the information gathered from the sensors and calculates dew point and wet bulb. Compact Series Multi-Mode Thermohygrometer with Wireless Capability Ideal for use in the HVAC, IAQ, and environmental industries l The probe is able to get in to hard-to-reach areas with the optional extension cable or wireless handle 37803-34 l Monitors relative humidity, temperature, wet bulb, and dew point This compact, easy-to-use thermohygrometer has three modes of operation: 1) RH probe fixed to the meter (standard); 2) RH probe fixed to the end of the optional extension cable 37803-35; and 3) RH probe attached to the optional wireless upgrade kit 37486-02. The 37846-05 supplied removable RH probe can be used in all three modes, and provides an exceptional ±2.5% RH accuracy. The meter features min/max/hold, a large two-line backlit display, and basic status such as battery life. The display can be easily switched between humidity, wet bulb, and dew point at the touch of a button. In addition to the standard configuration, this meter can be easily upgraded anytime to wireless. The optional wireless upgrade kit 37486-02 accepts either the standard RH probe (supplied) or the optional type K thermocouple adapter 37486-03 providing a wire-free solution. Wireless measurements can be taken up to 60 feet away from the meter—so large Accessories HVAC systems, laboratories, warehouses, or offices can be monitored with ease. KH-37803-35 Relative humidity The optional carrying case 10323-12 protects the instrument from moisture, dirt, and extension cable impact, yet allows easy operation and viewing of the display. KH-10323-12 Protective What’s included: plug-in humidity probe head, calibration documentation, and one 9 V battery. carrying case KH-37486-02 Wireless upgrade kit includes Specs & Ordering Information one wireless handle and one wireless Response time: 8 seconds Power: one 9 V battery (included) module. Can be used with any wireless Display: triple LCD, backlit Dimensions: 4"W x 11"H x 1 3⁄4"D probe head. Range 0 to 100% KH-37486-03 Wireless thermocouple RH Resolution 0.10% adapter head, accepts any type K mini- Accuracy ±2.5% RH thermocouple. Must be used with wireless Range 14 to 140°F (–10 to 60°C) upgrade kit 37486-02. Temperature Resolution 0.1°F (0.1°C) KH-37486-05 Wireless RH probe head. Accuracy ±0.9°F (±0.5°C) Must be used with wireless upgrade kit Dew point Included* 37486-02. (Replacement for standard Wet bulb Included* RH probe.) Catalog number Description Price EK-17030-20 Calibration service; NIST- KH-37803-34 Multi-mode thermohygrometer with wireless capability traceable certificate, three humidity and *Meter takes the information gathered from the sensors and calculates dew point and wet bulb. one temperature test points

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Humidity HU Digital Thermohygrometers Thermohygrometer with Dew Point Simultaneously display temperature, humidity, and dew point l IP54 rating provides splash- and rust-resistant protection This thermohygrometer offers the unique feature of displaying temperature, humidity, and dew point simultaneously—eliminates the need Specifications & Ordering Information to switch screen displays. The rugged design allows measurements in Response time: 4 seconds Dimensions industrial applications, and offers Display: dual-line, 4-digit LCD Meter: 3"W x 6"H x 1"D Probe: 10"L x 1⁄2" dia splash- and dust-resistant protection. Power: two AA batteries (included) Meter features selectable °F/°C, hold, Mode RH Temperature Dew point single- or dual-point temperature –40 to 140°F –130 to 140°F Range 0 to 100% and humidity calibration, low-battery (–40 to 60°C) (–90 to 60°C) indicator, and built-in tilt stand. Resolution 0.1% 0.1°F/°C 0.1°F/°C Order additional probe at right for Accuracy ±2% ±1°F (±0.5°C) — convenient replacement. For field calibration, order calibration kit 37450- Catalog number Description Price 10 at right. KH-37003-10 Thermohygrometer with dew point What’s included: two AA batteries. KH-37003-62 Replacement probe KH-37450-10 Calibration kit, includes 11.3% and 75.3% salts KH-09376-01 Replacement batteries, AA. 37003-10 EK-17030-20 Calibration service; NIST-traceable certificate, three humidity and one temperature test points

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Thermohygrometer with Dew Point and Data Logging

Simultaneously display temperature, humidity, and dew point l IP54 rating provides splash- and dust-resistant design l Log up to 1000 data points with time Specifications & Ordering Information and date stamp Response time: 4 seconds Power: two AA batteries (included) This industrial-grade thermohygrometer Output: RS-232 and infrared Dimensions offers the unique feature of displaying Memory capacity: 1000 data points Meter: 3"W x 6"H x 1"D temperature, humidity, and dew point Probe: 10"L x 1⁄2" dia simultaneously—eliminating the need Display: dual-line, 4-digit LCD to switch screen displays. The impact- Mode RH Temperature Dew point resistant, IP54-rated design protects the Range 0 to 100% –40 to 140°F (–40 to 60°C) –130 to 140°F (–90 to 60°C) meter from dust, particles, and water. Resolution 0.10% 0.1°F/°C 0.1°F/C For field calibration, order calibration Accuracy ±2% ±1°F (±0.5°C) — kit 37450-10 (sold separately at right). Provides the same features as 37003-10 Catalog number Description Price shown at top of page plus logging KH-37003-02 Logging thermohygrometer with dew point capabilities, v adjustable filter rate (stabilize fluctuating readings), min/max, and Recall functions. Accessories Log up to 1000 data points with time KH-37450-10 Calibration kit, and date stamp for later analysis. includes 11.3% and 75.3% salts Program logging interval between KH-91100-85 RS-232 interface 1 second to 60 minutes. Download stored data to a PC via RS-232 interface or 37003-02 KH-37486-12 Infrared printer. Includes one roll of transmit data to printer 10374-50 via infrared paper and four AA batteries signal output(each sold separately at right). KH-92600-45 Replacement printer paper. Pack of 6 rolls What’s included: two AA batteries. KH-17030-20 Calibration service; NIST-traceable certificate KH-37003-62 Replacement probe

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HU Humidity Digital Thermohygrometers

Thermohygrometers Specifications & Ordering Information 37950–12 Microprocessor-based for quick Response time: 8 seconds Power: one 9 V battery (included) Output: RS-232 Dimensions and easy calibration 3 1 1 Display: dual-line, 31/2-digit LCD; 1/4"H Meter: 2 /4"W x 7 /8"H x /8"D 3 3 l Download data to PC via RS-232 Probe: 7 /4"L x /4" dia Measure temperature and humidity Catalog number KH-37950-03 KH-37950-11 with these thermohygrometers. Probe Range 10 to 95% Resolution 0.1% is replaceable if damaged. RH ±3% from 20 to 90% at ±2% from 0 to 95% at Accuracy These meters feature data hold, min/max, 77°F (25°C) calibration temp memory storage, selectable °F/°C, low- Range 0 to 122°F (–18 to 50°C) battery indicator, and auto-off after 20 Temp Resolution 0.1°F/°C minutes of nonuse. Model 37950-11 also Accuracy ±0.5° from 32 to 122°F (0 to 50°C) calculates dew point and features an alarm Range — 32 to 122°F (0 to 50°C) Dew Resolution — 0.1°F/°C for out-of-range conditions. point Accuracy — ±4°F (2°C) What’s included: hard case and one Price 9 V battery. *Meter takes the information gathered from the sensors and calculates dew point. KH-37950-70 Communication cable for RS-232 interface 37950-03 KH-35612-90 Calibration salt, 33% RH KH-35612-91 Calibration salt, 75% RH KH-37950-50 Replacement probe for 37950-03 ∆T Thermohygrometers KH-37950-54 Replacement probe for 37950-11 with Dew Point Specifications & Ordering Information Measure variable changes with ∆T function Response time: Power: one 9 V battery (included) 3 seconds to move 60% of scale Dimensions: 23/4"W x 71/2"H x 13/8"D l Recall up to 16 measurements Memory capacity: 16 data points This sturdy thermohygrometer Display: 4-digit LCD, 7/8"H is perfect for both laboratory and field use. Meter measures humidity, Mode RH Temperature Dew point temperature, and dew point. Range 0 to 95% –22 to 185°F (–30 to 85°C) Resolution 0.1% 0.1°F or °C Features include automatic ±3.6°F (±2.0°C) from 30% to 95% RH ±2% (0 to 60%); ±1.8°F shutoff after 12 minutes of Accuracy ±7.2°F (±4.0°C) from 10% to 30% RH ±3% (61 to 95%) (±1.0°C) nonuse, °F/°C selection, ±14.4°F (±8.0°C) from 5% to 10% RH min/max, HOLD, low- battery indicator, easy user Catalog number Description Price ­calibration, and memory KH-37961-10* ∆T Thermohygrometer with dew point storage and recall of up to *Meter takes the information gathered from the sensors and calculates dew point. 16 readings. Order optional ­calibration kit separately at KH-80000-50 Humidity calibration kit. right. 37961-10 Includes calibration salts for 11% and 75% RH What’s included: one 9 V battery. KH-09376-04 Replacement batteries, 9 V. Pack of four Digital Thermohygrometer with Dew Point Ensure the accuracy of your humidity equipment—calibrate! Quick response time and EK-17030-20 Calibration service; NIST-traceable high accuracy measurements certificate, three humidity and l Durable construction one temperature test points for tough applications This meter measures humidity, temperature, and dew point. Simultaneously view temperature Specifications & Ordering Information and humidity or humidity and Response time: 10 seconds Power: one 9 V battery (included) dew point on the two-line LCD. Display: two-line, 12 character LCD Dimensions: 3"W x 6"H x 11/2"D The ergonomic and compact design offers comfort and Mode RH Temperature Dew point stability during measurement. Range 5 to 95% –4 to 176°F (–20 to 80°C) The shockproof, ABS housing Resolution 0.10% 0.1°F/°C provides a rugged design for Accuracy ±2% of reading + 0.1% ±2% of reading + 0.6° industrial applications. Meter features selectable °F/°C, display Catalog number Description Price KH-37853-00* Digital thermohygrometer with dew point hold, min/max readings, and 37853-00 auto-off after 30 minutes. *Meter takes the information gathered from the sensors and calculates dew point. What’s included: one 9 V battery. KH-09376-04 Replacement batteries, 9 V. Pack of four

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Humidity HU Digital Thermohygrometers Dual-Temperature Thermohygrometers Thermohygrometer Monitor parameters with high and low alarm levels Log up to 16,000 measurements for l Audible alarm and flashing display actuate when later analysis high or low limits are exceeded l l Type K thermocouple probe allows NIST-Traceable secondary temperature measurement Thermohygrometers accurately This thermohygrometer measures measure humidity and temperature, humidity, ambient temperature, and calculate dew point. Program and a secondary temperature with high/low audible/visual alarms for included type K thermocouple probe. temperature, humidity, and dew point. Choose from two models: Simultaneously display the three 03313-65 parameters on the large LCD. For universal or fast-response. convenient one-handed operation, What’s included: ABS plastic housing, probe with attach the probe to included probe 41/2-ft cable, NIST-traceable calibration certificate, holder. Meter features a memory to log one 9 V battery, and plastic carrying case. up to 16,000 data points to download to a PC via included RS-232 cable. Other features include selectable °F/°C, Specifications & min/max, Hold, TIME function, low Ordering Information battery indicator, and auto-off. Response time Power: one 9 V battery (included) What’s included: beaded type K Model 03313-65: 30 sec to 31/2 min thermocouple probe, probe holder, Dimensions Model 03313-66: less than 10 sec 1 1 1 RS-232 cable and Windows® software, Meter: 5 /2"W x 3 /2"H x 1 /4"D 11 one 9 V battery, and a carrying case. 37953-20 Output: RS-232 Probe for 03313-65: 7"L x /16" dia Display: 5-digit LCD Probe for 03313-66: 7"L x 3/8" dia Catalog number KH-03313-65* KH-03313-66* Specifications & Ordering Information Range 10 to 95% 5 to 95% RH Resolution 0.01% Response time: 6 seconds Display: 4-digit LCD Accuracy ±1.5% Output: RS-232 Power: one 9 V battery (included) Range 40.00 to 220.00°F (4.44 to 104.40°C) Temperature Resolution 0.01°F (0.01°C) Memory capacity: 16,000 points Dimensions: 21/2"W x 71/4"H x 11/2"D Accuracy ±0.4°F (±0.2°C) Mode RH Temperature K-thermocouple temperature Range –40 to 140°F (–40 to 60°C) Dew point Range 0 to 100% –4 to 140°F (–20 to 60°C) –328 to 2498°F (–200 to 1370°C) Resolution 0.01°F (0.01°C) Resolution 0.1% 0.1°F/°C 0.1°F/°C Price Accuracy ±2.5% ±1.4°F (±0.7°C) ±0.3% of reading + 2°F (1°C) *Meter takes the information gathered from the sensors and calculates dew point.

Catalog number Description Price KH-03313-95 Optional power adapter, 115 VAC KH-37953-20 Dual-temperature thermohygrometer KH-03313-98 Data output cable KH-03313-99 Parallel-to-serial converter KH-09376-04 Replacement batteries, 9 V. Pack of four

Printing Thermohygrometer Meet today’s stringent QC standards l Meets federal CLIA Specification 93.1207 l NIST traceable l Provides a permanent hard-copy of the results Provides a permanent record by printing current humidity, dew point, temperature, and min/max readings, plus the time/date they occurred. The meter can be set to automatically and repeatedly print at any programmed interval from every 6 seconds to 59 minutes or at the press of a button. Large, triple-line display with 3⁄8"H LCD continuously and simultaneously shows time, humidity, temperature 1, and temperature 2 readings. Selectable °F/°C reading with fast-response, solid-state sensors that detects change in less than 10 seconds. Case is made of ABS plastic and is chemical- and shock-resistant. The meter is dependable and reliable—ideal for use in cleanrooms, food storage areas, drug manufacturing, air analysis, and environmental chambers. What’s included: six AAA batteries, paper roll, and carrying case. Specifications & Ordering Information Response time: 10 seconds Power: six AAA batteries (included) or optional 115 VAC adapter Display: triple-line LCD Dimensions: 3"W x 71⁄2"H x 11⁄2"D 37803-51 Mode RH Temperature 1 Temperature 2 Range 10 to 95% –4 to 140°F (–20 to 60° C) –328 to 2431°F (–200 to 1333°C) KH-37803-55 AC adapter, 115 VAC Resolution 1% 0.1°F (0.1°C) 0.1°F (0.1°C) KH-37803-50 Replacement printing Accuracy ±2% from 40 to 80% RH; ±4% outside that range ±1.8°F (±1°C) ±0.2% of reading + 1.8°C paper. Pack of 2 rolls Catalog number Description Price EK-17030-20 Calibration service; NIST- KH-37803-51* Printing thermohygrometer traceable certificate, three humidity and *Meter takes the information gathered from the sensors and calculates dew point. one temperature test points

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HU Humidity Digital Thermohygrometers Dew Point Meter with Surface Temperature Probe Ideal for measuring and recording climatic parameters l Measure surface temperature with included 37962-00 measures four type K thermocouple probe parameters with one probe! Specifications & Ordering Information l Display flips for easy viewing in hard-to- Response time: 4 seconds Power: two AA batteries (included) reach areas Output: infrared and RS-232 Dimensions This dew point meter measures Memory capacity: 1000 data points Meter: 21/2"W x 6"H x 1"D 3 3 humidity, air temperature, Display: multi-line LCD with backglow Probe: 8 /4"L x /4" dia surface temperature, dew point, and the difference Air Surface Mode Dew point RH between surface and dew point temperature temperature –40 to 176°F –40 to 175°F –40 to 375°F temperatures (determines Range 0 to 100% condensation probability). (–40 to 80°C) (–40 to 80°C) (–40 to 190°C) Parameters are simultaneously Resolution 0.1°F/C 0.1% 0.1°F/C 0.1°F/C displayed and updated on a ±1°F (±0.5°C) multilingual, backglow LCD. from –40 to 175°F ±3.6°F (–10 to 80°C); Attach probe to the included Accuracy ±3% ±1°F (±0.5°C) (±2°C) ±3°F (±1.5°C) holder for one-handed operation. from 175 to 375°F Store up to 1000 data points and (80 to 190°C) automatically record measurements at user-selected time intervals. Catalog number Description Price Download data to a PC via RS-232 KH-37962-00* Dew point meter with surface temperature probe interface (sold separately at right) or transfer data to infrared printer *Meter takes the information gathered from the sensors and calculates dew point. 10361-65 (sold separately at right) KH-37962-50 Software and RS-232 cable. Windows® based for a date and time stamp printout. analysis software for graphing, annotation, and printing KH-10361-65 Infrared printer includes one roll of paper What’s included: certificate of NIST traceability, and four AA batteries leather pouch, probe holder, and two AA batteries. KH-10361-67 Replacement printer paper

Thermohygrometer with Adjustable Display Display swivels 120° allowing easy viewing at any angle l Auto calibration mode provides accurate field calibrations Measure temperature, humidity, dew point, and wet bulb with this portable thermohygrometer. The large, three-line LCD simultaneously displays temperature, humidity and dew point or wet bulb, and offers the unique feature of 30° angle adjustment forward, and 90° angle adjustment backward. Dip-switches within the battery compartment allow selectable °F/°C, dew point or wet bulb operation, auto calibration mode, and auto off mode. Auto calibration function recognizes 33% and 75% calibration salts. For convenient hands-free operation, a tripod screw-mounting socket is accessible on the back of the meter. What’s included: NIST certificate of calibration, leather belt loop case, and one 9 V battery. 37854-00 has adjustable display for added Specifications & Ordering Information convenience. Response time: 10 seconds Power: one 9 V battery (included) Display: three-line LCD Dimensions: 31/4"W x 7"H x 1"D Mode RH Temperature Dew point Range 20 to 95% –4 to 176°F (–20 to 80°C) –58 to 176°F (–50 to 80°C) Resolution 0.1% 0.1°F (0.1°C) 0.1°F (0.1°C) ±1.2°F (±1.0°C) from 20 to 35% Accuracy ±2% ±0.5°F (±0.3°C) ±2.2°F (±2.0°C) from 35 to 95% Ensure the accuracy of your humidity Catalog number Description Price equipment—calibrate! KH-37854-00* Thermohygrometer with adjustable display EK-17030-20 Calibration service; NIST-traceable *Meter takes the information gathered from the sensors and calculates dew point. certificate, three humidity and one temperature test points KH-09376-04 Replacement batteries, 9 V. Pack of 4

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Humidity HU Digital Thermohygrometers

CompactPro™ Thermohygrometers with Wireless Capability Professional and reliable long-term use thermohygrometer l Meter requires the probes to be ordered separately from an impressive range of options These meters have an impressive range of optional probes (meter does not come with a probe) that can measure humidity, temperature, moisture, dew point, and absolute pressure within seconds. Five probe inputs ensure maximum flexibility: two cable inputs and three wireless inputs. All inputs are displayed on a large, backlit display for easy viewing. A rugged designed rubberized housing offers protection against dirt and impact, also equipped with a convenient carrying strap and built-in mounting magnets. Function keys provide access to advanced features including differential, mean, min/max, hold, programmable data files, and user-defined profiles. Optional wireless printer 37486-12 provides documentation of all channels; meter can be set up for timed interval printing for long-term monitoring. Model 37803-37 includes all these features plus adds a 10,000 datalogging capacity, USB cable, and ComSoft software for easy programming and data transferring. In addition to standard probes with a wire, this meter can be easily upgraded anytime to wireless probes for use up to a distance of 20 meters. A maximum of three wireless probes can be read and displayed by the meter. To add this feature, order wireless upgrade kit 37486-02 (includes one wireless handle and module) along with a wireless probe head. The high-pressure dew point (HPD) probe 37803-42 incorporates both a quick- connect fitting and integral sample chamber for simple dew point measuring in compressed air systems, dryers, medial and instrument air, and other applications where an accurate dew point measurement is needed. What’s included: calibration documentation and one 9 V battery. 37803-36 Specifications & Ordering Information Response time: 8 seconds Power: one 9 V battery (included) Display: multi-line backlit LCD Dimensions: 21⁄2"W x 7"H x 11⁄2"D

Mode RH Temperature, thermocouple type K Temperature, RTD Dew point* Range 0 to 100% –328 to 2498°F (–200 to 1370°C) 14 to 140°F (–10 to 60°C) –22 to 122°F (–30 to 50°C) Resolution 0.10% 0.1°F (0.1°C) 0.1°F (0.1°C) ±2C tdp (–9.9 to –5 tdp) Accuracy ±2.5% RH ±0.9°F (±0.5°C) ±0.9°F (±0.5°C) —

Catalog number Description Price KH-37803-36* CompactPro thermohygrometer with wireless capability KH-37803-37* CompactPro thermohygrometer with datalogging and wireless capability *Meter takes the information gathered from the sensors and calculates dew point.

Accessories KH-37486-02 Wireless upgrade kit includes one wireless handle and one wireless module. Can be used with any wireless probe head 37486-03 KH-37486-03 Wireless thermocouple adapter head, accepts any type K mini-thermocouple. Must be used with wireless upgrade kit 37486-02 KH-37486-05 Wireless RH probe head. Must be used with wireless upgrade kit 37486-02 KH-37803-35 Extension cable for use with RH probe head 37486-05 KH-37803-38 Temperature/humidity probe, –20 to 70°C, 37486-12 0 to 100% RH KH-37803-39 Robust temperature/humidity probe, 37486-02 37486-05 –20 to 125°C, 0 to 100% RH KH-37803-40 Absolute pressure probe, KH-37486-12 Infrared printer, includes one roll of paper 0 to 29 psi (0 to 200 hpa) and four AA batteries KH-37803-41 Ambient air temperature probe, KH-92600-45 Replacement printer paper. type K, –60 to 400°C Pack of 2 rolls KH-37803-42 High-pressure EK-17030-20 Calibration service; NIST-traceable certificate, three dew point probe, –30 to 50°C TD, 0 to 100% RH humidity and one temperature test points

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HU Humidity Digital Thermohygrometers TH-Calc™ Meter Ideal for conducting thermal comfort studies and Indoor Air Quality (IAQ) evaluations l Sampling function records multiple point measurements These temperature, humidity, and dewpoint meters are excellent for a variety of Specifications & Ordering Information applications. Use them to verify Response time: 30 seconds Power: four AA batteries (included) building HVAC system performance, calculate thermal Memory capacity: 4000 data points Dimensions comfort levels, or monitor air (model 10273-10 only) Meter: 4"W x 61/2"H x 11/2"D 13 3 conditions for industrial drying Display: two-line, 4-digit, 1/2"H Probe: 5 /16"L x /4" dia processes. Detect IAQ problems Mode RH Temperature* Dew point in labs, plants, schools, airports, Range 5 to 95% 32 to 140°F (0 to 60°C) 5 to 120°F (–15 to 49°C) and homes. Choose from the Resolution 0.1% 0.1°F/°C 0.1°F/°C standard model (10273-00) for basic Accuracy ±2% ±1.0°F (0.6°C) — real-time readings, or the advanced *Order RTD temperature probe for greater range (sold separately below). model (10273-10) for datalogging and thermo hygrometer readings. 10273-10 Catalog number Description Price Model 10273-10 features datalogging KH-10273-00* TH-Calc meter capabilities that store up to KH-10273-10* TH-Calc meter with % outside air 14,000 samples with a time/date stamp; *Meter takes the information gathered from the sensors and calculates dew point. absolute humidity, and wet-bulb temperature readings. Automatically calculate % outside air Accessories ™ after taking necessary temperature readings. Includes Logdat KH-93831-70 General-purpose RTD temperature probe, measures software for transferring data to your computer, and Logdat 3 1 ® 10"L x ⁄16" diameter; 316 SS sheath with 5 ⁄2" glass-filled nylon Companion for graphing data in Excel . Order optional RTD handle with ANSI connector. For model 10273-10 only temperature probe separately for a greater temperature range of –40 to 392°F (–40 to 200°C). EK-17030-20 Calibration service; NIST-traceable certificate, three humidity and one temperature test points What’s included: probe stand, NIST-traceable certificate, KH-10271-60 AC Adapter, 115 VAC carrying case, and four AA batteries.

Digital Thermohygrometers Ergonomic design for convenient humidity measurement 37924-10 digital thermohygrometer with l For maximum flexibility, select probes to fit standard probe your application 37924-70 l All probes must be ordered separately Measure temperature and humidity, and calculate dew point and wet bulb. The digital probe technology eliminates calibration and downtime when changing probes. Model 37924-10 also features datalogging and RS-232 capabilities (order cable and software at Probes right). Recharge your meter with docking station 37924-84. Probes sold separately at right. Cat. no. Probe Temp range Price –40 to 185°F KH-37924-70 Standard (–40 to 85°C) –58 to 392°F KH-37924-72 High-temp Specifications & Ordering Information (–50 to 200°C) –40 to 185°F KH-37924-80 Sword Response time: 10 seconds Power: 9 V battery (included) (–40 to 85°C) Output: RS-232 (37924-10 only) Dimensions: 3"W x 7"H x 1"D Display: four-line alphanumeric LCD Accessories KH-37924-82 Cable and software for model Catalog number KH-37924-00* KH-37924-10* 37924-10. PC-based probe calibration, Range 0 to 100% datalogging, graphing, Resolution 0.1% psychrometric calculations RH ±(0.5% RH + 1.5% of reading) Accuracy KH-37924-84 Docking station for model w/4-pt calibration at 23°C/73°F 37924-10; includes 9 V battery charger Range –100 to 392°F (–50 to 200°C) and RS-232 PC connection Temp Resolution 0.1°F (0.1°C) Accuracy ±0.4°F (±0.2°C) EK-17030-20 Calibration service; NIST- Datalogging capacity No Yes traceable certificate, three humidity and Price one temperature test points *Meter takes the information gathered from the sensors and calculates dew point. KH-09506-48 Battery, 9 V, rechargeable NiCd

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Humidity HU Digital Thermohygrometers

Specs & Ordering Information Pocket-Size Thermohygrometers 37300-20 Response time: 5 seconds with grid, 15 seconds only Lightweight meter with superior accuracy with 0.2 µm membrane filter (included) Display: 31/2-digit LCD l Fast response 37300-10 Power: one 9 V battery (included) l Probe retracts for convenient use and storage Dimensions The HM series meter is ideal for field and on-site relative Meter: 21/4"W x 61/4"H x 1"D humidity and temperature readings, this compact, Probe: 33/8"L x 1/2" dia handheld thermohygrometer features an integral probe that slides out easily for measurements, Catalog number KH-37300-10 KH-37300-20 then retracts for convenient storage. Range 0.0 to 100% Resolution 0.1% The Humicap® sensor offers excellent long-term RH ±2% from 0 to 90%; Accuracy stability and negligible hysteresis. Sensor is ±3% from 90 to 100% insensitive to dust and most chemicals. Use the HOLD button to “freeze” your last Range –4.0 to 140.0°F –20.0 to 60.0°C Temperature Resolution 0.1°F 0.1°C reading. Meter automatically shuts off after Accuracy ±0.5°F ±0.3°C three minutes of nonuse. Price What’s included: one 9 V battery and KH-17030-20 Calibration service, a carrying case. NIST traceable

Thermohygrometer/Calibrators High accuracy and excellent long-term stability l Ideal for spot checking and field calibration l Internal datalogger stores up to 200 readings The HMI series measure relative humidity and ­temperature; calculate dew point, wet bulb, absolute humidity, and mixing ratios. Models are available with integral, standard, or high-temperature probes; standard and high-temperature probes include a 5-ft cable. Model 03334-96 can be used in temperatures up to 356°F (180°C). Meters are constructed of ABS plastic, rated IP65 against dust and sprayed water. Meters also feature a one-point calibration function. To calibrate Vaisala transmitters starting on page 760, order the appropriate calibration cable below. Download up to 200 readings with the serial communication cable below.

03334-96 03334-97 Specifications & Ordering Information 03334-95 Response time: 15 seconds Power: four AA batteries (included) at 90% of reading Dimensions: 31/8"W x 73/4"H x 11/8"D Memory capacity: 200 data points Display: two-line, 8-digit LCD

Catalog number KH-03334-96 KH-03334-95 KH-03334-97 Probe type High temperature Standard Integral 5 1 7 3 5 3 Probe dimensions 12 ⁄8"L x ⁄2" dia 10 ⁄8"L x ⁄4" dia 4 ⁄8"L x ⁄4" dia Calibration to a NIST-Traceable standard Range 0 to 100% helps meet ISO, FDA, USDA, and EPA quality RH Resolution 0.1% Accuracy ±1% from 0 to 90%; ±2% from 90 to 100% guidelines. Our ANSI/ISO/IEC 17025:2005 –40 to 356°F –40 to 212°F accredited metrology laboratory will test Range (–40 to 180°C) (–40 to 100°C) and calibrate your humidity equipment. Temperature Resolution 0.1°F (0.1°C) Service includes NIST-Traceable calibration Accuracy ±1°F (±0.1°C) certificate with before and after test data at Price three humidity points (30, 60, and 80% RH) and one temperature point at ambient. KH-03329-52 Replacement probe, standard KH-03329-53 Replacement probe, high temperature EK-17030-20 NIST-Traceable humidity certificate KH-03329-82 Communication cable, serial

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HU Humidity Digital Thermohygrometers Multi-Probe Thermohygrometer Dual probe input for multi-parameter measurement l Store 2700 data points—download later to your A 37301-90 PC via RS-232 interface B 37301-92 l Display measurements numerically or graphically C 37301-94 l Three probe types available; tailor the meter for your application (temperature range: –70 to 120°C) Meter measures temperature and humidity, plus calculates dew point, wet bulb, mixing ratio, absolute humidity, enthalpy, and water vapor pressure. It offers six different languages in display. Log three parameters into meter memory while displaying data in numerical or graphical fashion. View graphic trends of any parameter on backlit LCD. Customize your application with three humidity probes (sold separately). The general-purpose probe measures ambient 37301-40 conditions. Use the 12" stainless steel probe for air duct measurements. The extension cable probe includes a humidity A B C sensor at the end of a 5-meter cable for high-temperature and hard-to-reach measurements. Probes include certificate of NIST Probes traceability. Order probes separately below. Catalog number A KH-37301-90 B KH-37301-92 C KH-37301-94 What’s included: Windows®-based analysis software, rechargeable Probe type General-purpose 12" stainless steel 5 m extension cable battery pack, 115 VAC adapter, and carrying case. Range 0 to 100% RH Resolution 0.01% Accuracy ±1% from 0 to 90%, ±2% from 90 to 100% Specifications & –4 to 140°F –58 to 248°F –94 to 356°F Range (–20 to 60°C) (–50 to 120°C) (–70 to 180°C) Ordering Information Meter Probes Temp Resolution 0.01°F/°C Output: RS-232 and 0 to 1 VDC Power: rechargeable NiMH battery Accuracy ±0.36°F (±0.2°C) Range –4 to 212°F (–20 to 100°C) Memory capacity: 2700 data points pack or 115 VAC adapter/charger Dew point 1 7 2 Resolution 0.01°F/°C Display: backlit LCD Dimensions: 3 /8"W x 7 /8"H x 2 /3"D Response time 8 seconds 40 seconds 20 seconds Dimensions 123⁄4"L x 1⁄2" dia 21"L x 1⁄2" dia 2071⁄2"L x 1⁄2" dia Catalog number Description Price (probe plus handle) KH-37301-40 Vaisala multi-probe thermohygrometer Price Dew Point and Temperature Meter Take in-line measurements with a handheld meter l In-line measurement for compressed air lines l Handheld meter withstands condensation for Dew point accuracy: use in pressurized spaces achieve <±3.6°F (±2°C) l Drycap® sensor technology provides in blue-shaded areas of the graph. accuracy, reliability, long-term stability, and fast response l Meter logs all readings for later analysis— simply download to your PC via the RS- 232 interface Sample cell adapter The dew point meter DM series is ideal for use in industrial spot checking of ­compressed air lines, plastic molding Specifications & processes, and other dry gas applications. Ordering Information Meter Probes Meter accurately measures dew point Response time: 10 to 35 seconds Display: backlit LCD ­temperature from –40 to 140°F (–40 to 60°C). Sensing probe features the unique Drycap Output: 0 to 1 VDC analog Power: rechargeable NiMH battery polymer-based technology that enables Memory capacity: pack or 115 VAC adapter/charger reliable dew point measurement. 900 to 2700 points (real time) (included) Dimensions: 31/8"W x 77/8"H x 12/3"D The easy-to-connect sample cell adapter Operating pressure: 0 to 290 psi ­withstands condensation and is easily (0 to 20 bar) connected allowing it to be placed directly in Volume Mode Dew point RH Temperature pressurized spaces. Readings are displayed 37301-30 concentration either numerically or graphically on the ­–40 to 140°F 14 to 140°F 40 to Range 0 to 100% backlit LCD—simply press a key and the display changes to a real- (–40 to 60°C) (–10 to 60°C) 200,000 ppm time graphic display. Meter has a unique auto-calibration feature Resolution 0.01°F/°C 0.01% 0.01°F/°C 1 ppm that extends the calibration interval and provides long-term stability. <10%: ±0.025% ±3.6°F + 8.75% of rdg; ±0.36°F 7.3 ppm + ® Accuracy What’s included: Windows -based analysis software, analog (±2°C) >10%: ±0.7% (±0.2°C) 8.3% of rdg output signal cable, sample cell adapter, certificate of NIST +2% of rdg traceability, rechargeable battery pack, 115 VAC adapter, and carrying case. Catalog number Description Price KH-37301-30 Vaisala dew point meter

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Humidity HU Transmitters Basic-Use Humidity Transmitters Excellent stability with easy installation and reliable operation Use the HMW-40 series two-wire transmitters to monitor your relative humidity conditions. Low-maintenance units require no calibration and have an easy to replace sensor. Specifications & Ordering Information Range: 0 to 100% RH Power: 10 to 28 VDC Accuracy: ±3% from 10 to 90% RH Dimensions Duct-mount model Output: 4 to 20 mA Housing: 31/8"W x 31/8"H x 11/2"D; 1 5 37303-10 Response time: 15 seconds Probe: (duct-mount model): 10 /2"L x /8" dia

Catalog number Description Price Wall-mount model KH-37303-00 Wall-mount humidity transmitter 37303-00 KH-37303-10 Duct-mount humidity transmitter KH-37303-50 Replacement RH sensor for RH transmitters 37303-00 and -10 Relative Humidity or RH/Temperature Transmitters Designed for industrial and HVAC applications The HMW-60 series with the HUMICAP® sensors have long-term stability, negligible hysteresis, and resistance to dust and most chemicals. Two-wire transmitters monitor your humidity or RH/ temperature conditions with ±2% RH accuracy. Probe on models 03334-18 and -36 measures 3"L x 0.75" dia. Sensors on models 03334-36 03334-15, -18, -35, and -36 include a 0.5-µm membrane filter. 03334-05 03334-35 Specifications & Ordering Information Response time: 15 seconds with filter; 5 seconds Power: 10 to 35 VDC without filter (for 90% of reading at 20°C) Dimensions Wall mount: 31⁄4"W x 41⁄4"H x 11⁄4"; NEMA 4, wall mount: 411⁄16"W x 711⁄16"H x 11⁄4"D Catalog number KH-03334-05 KH-03334-15 KH-03334-18 KH-03334-25 KH-03334-35 KH-03334-36 RH transmitter, RH/temperature RH/temperature RH/temperature Description RH transmitter RH transmitter NEMA 4 transmitter transmitter transmitter, NEMA 4 Mounting type Wall mount Duct mount Wall mount Wall mount Duct mount Wall mount Range 0 to 100% 0 to 100% 0 to 100% 0 to 100% 0 to 100% 0 to 100% RH ±2% from 0 to 90%; ±2% from 0 to 90%; ±2% from 0 to 90%; ±2% from 0 to 90%; ±2% from 0 to 90%; ±2% from 0 to 90%; Accuracy ±3% from 90 to 100% ±3% from 90 to 100% ±3% from 90 to 100% ±3% from 90 to 100% ±3% from 90 to 100% ±3% from 90 to 100% Range — — — 23 to 131°F (–5 to 55°C) –4 to 176°F (–20 to 80°C) –4 to 140°F (–20 to 60°C) Temperature Accuracy — — — ±0.36°F (± 0.2°C) ±0.36°F (±0.2°C) ±0.36°F (±0.2°C) Output 4 to 20 mA 4 to 20 mA 4 to 20 mA 4 to 20 mA 4 to 20 mA 4 to 20 mA Price Temperature and Humidity or Dew Point Transmitters Two-wire loop powered or three-wire voltage output configurations l HUMICAP® sensor resists dust and most chemicals The HMT-100 series transmitters are designed for monitoring humidity and temperature in demanding environments. The transmitters can be wall mounted and come with either an integral or remote probe, and with or without a display. IP65 (NEMA 4) protective housing The remote probe option is ideal for high-temperature applications or where space is limited. Remote probe is made of chrome-coated aluminum and has a 10-ft L cable. Note: Other options may be available—call for more information. Specifications & Ordering Information Response time: 30 seconds Power: 10 to 35 VDC Dimensions (housing): 37803-46 37803-45 Display: LCD (display model only) External cable: 9 ft 11⁄16"W x 711⁄16"H x 11⁄4"D Catalog number KH-37803-44 KH-37803-45 KH-37803-46 KH-37803-47 KH-37803-48 KH-37803-49 KH-37804-50 KH-37804-51 Parameters RH/temperature Dew point/temperature Probe type Integral Remote Integral Remote Display No Yes No Yes No Yes No Yes Range 0 to 100% 0 to 100% RH Accuracy ±1.7% from 0 to 90%, ±2.5% from 90 to 100% ±1.7% from 0 to 90%, ±2.5% from 90 to 100% Range –40 to 176°F (–40 to 80°C) –40 to 176°F (–40 to 80°C) Temperature Accuracy 0.36°F (±0.2°C) — — — — Dew point* Range — — — — –4 to 176°F (–20 to 80°C) Price *Meter takes the information gathered from the sensors and calculates dew point.

l U.S. 800-323-4340 toll-free, 847-549-7600 (outside the U.S.), www.coleparmer.com 759 Canada 800-363-5900 l India 91-22-6716-2222 l UK 0500-345-300 Registration Web Table-of-Contents

HU Humidity Transmitters

DRYCAP® Dew Point Transmitter Ideal choice for compressed air lines l Wide measurement range of –112 to 68°F (–80 to 20°C) Specifications & Ordering Information l Rapid response time with long-term stability Response time: 30 seconds l NIST traceable Power: 24 VDC ® Vaisala DRYCAP DMT-242 series transmitter provides reliable Dimensions: 61⁄2"H x 21⁄2" dia and stable measurements for low dew point industrial dryer applications. The sensor is immune to particulate contamination, water condensation, oil vapor, and most chemicals. Because the sensor withstands condensation, it offers unmatched performance Mode Dew point Range –112 to 68°F (–80 to 20°C) in low dew point applications that experience process water spikes. Resolution 0.10% The housing is IP65 (NEMA 4) rated and provides protection against Accuracy ±3.6°F (±2.0°C) dust, dirt, and splashed water. Due to its compact size it can quickly and easily be installed in tight spaces and directly into a system with Catalog number Description Price a maximum pressure of 20 bar. The transmitter can be field checked DRYCAP® dew point KH-37803-43 using Vaisala handheld meters 37301-90, -92, and -94 on page 909. transmitter

Relative Humidity/Temperature Industrial Transmitters Accurate and stable measurements for any industrial application l IP65-rated housing provides corrosion-resistant protection l Graphically monitor measurement trends on LCD (display models only) These HMT-330 series transmitters provide reliable and long-term stability of humidity and temperature measurements. Select RH/temperature transmitters or universal transmitters—with or without a display. The RH/temperature transmitters measure relative humidity and temperature. The universal transmitters measure relative humidity, temperature, dew point, absolute humidity, wet bulb, mixing 37510-22 ratio, and enthalpy. Transmitters with a display provide both numerical and graphic measurement capabilities. The graphic display shows measurement trends and parameter history up to one year. Integral Probe Transmitters are ideal for HVAC and condition monitoring applications. The 43⁄4"L x 1⁄2"-dia probe is directly attached to the housing and features a stainless steel filter. Tight-Space (Duct-Mount) Probe Transmitters let you measure in remote installations and small spaces. The 31⁄2"L x 1⁄2"-dia probe is attached to a 61⁄2-ft length of cable and features a stainless steel filter. Duct mounting kit (included) contains an aluminum flange, lead- through piece, and steel support bar. High-Temperature Probe Transmitters measure temperature up to 356°F (180°C). The 10"L x 37511-22 1⁄2"-dia stainless steel probe tolerates mechanical stress and high flow rates, and is attached to a 61⁄2-ft length of cable. Mounting flange (included) allows convenient installation. Note: Other options may be available—call for more information. What’s included: NIST-traceable calibration certificate.

Specifications & Ordering Information RH Temperature Response time: 20 seconds (90% response) Range: 0 to 100% RH Accuracy: ±0.2°F (±0.1°C) Display: backlit LCD (display models only) Accuracy: ±1% from 0 to 90%, ±1.7% from Output: 4 to 20 mA, RS-232 Power: 10 to 35 VDC, 24 VAC 90 to 100% Dew point (universal transmitters only) Dimensions: 71⁄4"W x 41⁄2"H x 3"D Output: 4 to 20 mA, RS-232 Accuracy: ±1°F (±1°C) Output: 4 to 20 mA, RS-232

Without display With display Probe type Temperature range Dew point Catalog number Price Catalog number Price RH/temperature transmitters Integral –40 to 140°F (–40 to 60°C) — KH-37510-20 KH-37510-22 Tight space (duct mount) –40 to 176°F (–40 to 80°C) — KH-37511-20 KH-37511-22 High temperature –94 to 356°F (–70 to 180°C) — KH-37512-20 KH-37512-22 Universal transmitters Integral –40 to 140°F (–40 to 60°C) –4 to 140°F (–20 to 60°C) KH-37510-24 KH-37510-26 Tight space (duct mount) –40 to 176°F (–40 to 80°C) –4 to 176°F (–20 to 80°C) KH-37511-24 KH-37511-26 High temperature –94 to 356°F (–70 to 180°C) –4 to 212°F (–20 to 100°C) KH-37512-24 KH-37512-26

760 l U.S. 800-323-4340 toll-free, 847-549-7600 (outside the U.S.), www.coleparmer.com Canada 800-363-5900 l India 91-22-6716-2222 l UK 0500-345-300 Registration Web Table-of-Contents

Humidity HU Transmitters Dew Point and Temperature Transmitter for Low Dew Point Applications Measures dew point from –60 to 80°C with an accuracy of ±2°C l DRYCAP® sensor provides accurate, reliable measurement with excellent long-term stability and fast response l Display numeric and graphic data—up to one year of measurements trends l Two analog outputs and a serial interface The DMT-340 series transmitters are designed for demanding industrial applications with dry conditions. Typical applications include compressed air drying and metal treatment. They offer reliable, accurate measurements with excellent long-term stability in dew points down to –60°C (–58°F). The DRYCAP sensor is immune to particulate contamination, water condensation, oil vapor and most chemicals. Since the sensor withstands condensation it offers unmatched performance in low dew point applications that experience water spikes in the process. 37803-53 Model 37804-53 features a graphic/numeric display and an easy-to-use, menu-based user interface. Both models have datalogging capability. One year of dew point and temperature data is automatically stored in the microprocessor and can be viewed locally on the display (37804-53), or downloaded to a PC to study historical trends. The unique auto-calibration function, patented by Vaisala, is a calibration and adjustment that the transmitter performs by itself while the measuring process is running. If the measurement accuracy is not confirmed, corrections are made automatically to the calibration curve. Note: Other options may be available—call for more information. What’s included: NIST-traceable calibration certificate. Specifications & Ordering Information Response time: 30 seconds Dimensions Display: LCD (display model only) Housing: 71⁄4"W x 41⁄2"H x 3"D External cable: 6 ft Power: 10 to 35 VDC Ensure the accuracy of Catalog number KH-37803-52 KH-37803-53 your humidity Mode RH/dew point/temperature RH/dew point/temperature Probe type Remote Remote equipment— Display No Yes calibrate! Range 0 to 70% 0 to 70% RH Accuracy ±0.004% + 20% of reading ±0.004% + 20% of reading EK-17030-20 Calibration service; Range –32 to 176°F (0 to 80°C) –32 to 176°F (0 to 80°C) NIST-traceable certificate, three Temperature Accuracy ±2°F/°C ±2°F/°C humidity and one temperature Dew point* Range –76 to 176°F (–60 to 80°C) –76 to 176°F (–60 to 80°C) test points Price *Meter takes the information gathered from the sensors and calculates dew point.

Intrinsically Safe Humidity Transmitters Factory Mutual approved for hazardous indoor applications l Meets Class I, II, III, Division 1, Groups A-G and Division 2, Groups A-D, F and G Measure temperature and humidity in environmentally hazardous areas. NEMA 4 (IP65) housing is rated water- and dust-proof. Wall-mount and duct-mount versions are available with or without an LCD. Two 4 to 20 mA outputs offer analog signals, one for humidity and one for temperature. What’s included: certificate of NIST traceability. Wall-mount transmitters include a probe measuring 45/8"L x 1/2" dia. Duct-mount transmitters include a probe measuring 211/16"L x 1/2" dia with 78" (2 m) of cable length, and a duct installation kit.

Specifications & Ordering Information Model type Wall-mount transmitters Duct-mount transmitters Catalog number KH-37510-10 KH-37510-12 KH-37510-14 KH-37510-16 Description Without display With display Without display With display Range 0 to 100% 37510-12 RH Accuracy ±1% from 0 to 90%, ±2% from 90 to 100% with Output 4 to 20 mA spark-proof design Range –40 to 140°F (–40 to 60°C) –40 to 248°F (–40 to 128°C) Temperature Accuracy ±0.36°F (±0.2°C) Output 4 to 20 mA Price

l U.S. 800-323-4340 toll-free, 847-549-7600 (outside the U.S.), www.coleparmer.com 761 Canada 800-363-5900 l India 91-22-6716-2222 l UK 0500-345-300