Extech Humidity Meters

Model	Description or Specification
HT30	Heat Stress WBGT Meter Considers the effects of temperature, humidity, and direct or radient sunlight
RH101	Hygro-Thermometer + InfraRed Thermometer Humidity, Air Temperature measurements
RH300	Digital Psychrometer Humidity, Wet bulb, Dew Point, Air Temperature plus External Probe Temperature measurements
RH350	SuperHeat Psychrometer Humidity, Wet bulb, Dew Point, Air Temperature plus External Probe Temperature measurements
RH390	Precision Psychrometer Highest 2% RH accuracy
RH401	Digital Psychrometer + InfraRed Thermometer Humidity, Wet bulb, Dew Point, Air Temperature plus IR for Non-contact Temperature measurements
RH490	Precision Hygro-Thermometer Highest 2% RH accuracy with Grains Per Pound (GPP) Display
RH520	Hygro-Thermometer Best value paperless chart recorder on the market
RH520A	Humidity+Temperature Chart Recorder with Detachable Probe
RH520A-220	Humidity+Temperature Chart Recorder with Detachable Probe and 220V AC power supply
RH520A-240	Humidity+Temperature Chart Recorder with Detachable Probe and 240V AC power supply
445580	Humidity/Temperature Pen Compact, Digital Hygro-Thermometer, ideal for field use
445582	Humidity/Temperature Pen Kit Compact, Digital Hygro-Thermometer, ideal for field use - includes calibration standards
445712	Hygro-Thermometer Clock Triple display with %RH and Temperature Alarms
445713	Big Digit Indoor/Outdoor Hygro-Thermometer Simultaneous display of Temp/Humidity
445715	Simultaneous display of Temp/Humidity Simultaneous display of Temp/Humidity
445814	Hygro-Thermometer Humidity Alert with Dew Point Programmable Alarm warns of High Humidity Conditions
445815	Hygro-Thermometer with Dew Point Programmable Alarm warns of High Humidity Conditions; with external probe and storage for cable
45320	Hygro-Thermometer Remote or integral probe plus large dual display with backlighting
EA20	EasyView Hygro-Thermometer Dual display of RH, Temperature, Dew Point and Wet Bulb
EA25	EasyView Hygro-Thermometer Datalogger Datalogs up to 99 manual readings for display recall or up to 15,000 readings for PC download; Dual display of RH, Temperature, Dew Point and Wet Bulb
407445	Heavy Duty Hygro-Thermometer with PC Interface Remote sensor, dual display of RH and Temperature plus PC interface
45158	Mini Humidity + Thermo-Anemometer Waterproof pocket size with Air Velocity, Temperature, %RH, Dew Point and Windchill
45160	3-in-1 Humidity Temperature + Airflow Meter Ergonomic pocket size housing, large dual LCD
407777	Moisture Meter Fast, accurate, wood moisture measurements with built-in self-calibration
HW30	HeatWatch Humidity/Temperature Stopwatch Digital UP/DOWN timer displays Temperature, Humidity, and Heat Index
445702	Hygro-Thermometer Clock Combines 3 displays for Time, Temperature, and Humidity
445703	Big Digit Hygro-Thermometer 1" Digits on super large LCD
44550	Pocket Humidity/Temperature Pen Built-in sensors provide simultaneous readings of Relative Humidity and Temperature
HD500	Psychrometer with Infrared Thermometer Combines the functions of a Humidity Meter, Type K Thermometer, and InfraRed Thermometer for non-contact surface Temperature measurement
HD500-NIST	Psychrometer with Infrared Thermometer w/ NIST Certificate Combines the functions of a Humidity Meter, Type K Thermometer, and InfraRed Thermometer for non-contact surface Temperature measurement
HD550	Psychrometer + IR Thermometer with GPP (g/kg) Combines the functions of a Humidity Meter, Type K Thermometer, and InfraRed Thermometer for non-contact surface Temperature measurement
HD550-NISTL	Psychrometer + IR Thermometer with GPP (g/kg) With Limited NIST Certificate Combines the functions of a Humidity Meter, Type K Thermometer, and InfraRed Thermometer for non-contact surface Temperature measurement
RH405	Digital Psychrometer + InfraRed Thermometer Kit Includes a RH401 with 33% and 75% calibration bottles, PC cable, and case
401016	Big Digit Window Thermometer Attach to any window to view outside temperature
392060	Penetration Stem Dial Thermometer Adjustable display with 9 viewing angles

Model	Discontinued Items
445800	Hygro-Thermometer Calendar/Clock LCD displays %RH, Temperature, Time, Date and Monthly Calendar, plus Alarm Clock feature Discontinued - Replaced with 445820
TH433	Wireless Hygro-Thermometer System Monitors local plus up to six remote locations from one base station (433MHz) Discontinued - No Replacement
TH433-2	Wireless Hygro-Thermometer System Monitors local plus up to six remote locations from one base station (433MHz) Discontinued - No Replacement
44533	Hygro-Thermometer Wall Clock Distinctive wall clock includes Temperature and Humidity Indicators Discontinued - No Replacement
44535	Wall Mount Weather Station Clock Three Hi-Tech displays - Clock, Humidity, and Temperature Discontinued - No Replacement
44537	World Time Clock Displays Calendar and Temperature plus time from major cities around the World! Discontinued - No Replacement
44539	Executive Desktop Clock Executive style desktop clock includes Temperature and Humidity indicators Discontinued - No Replacement
445705	Hygro-Thermometer Alarm Clock Large LCD displays %RH, Temperature, Time, Month and Date plus Clock Alarm Discontinued - Replaced with 445706
445820	Hygro-Thermometer Calendar/Clock Large LCD displays %RH, Temperature, Time, Date, Monthly Calendar plus Clock Alarm Discontinued - No Replacement
446580	Hygro-Thermometer Datalogger Built-in sensor and internal memory stores 7000 readings with PC interface Discontinued - Replaced with EA25
4465CF	Hygro-Thermometer Built-in sensor and DC analog recorder output Discontinued - Replaced with 4465CFA
4465CFA	Hygro-Thermometer Built in sensors measures Humidity, Temperature, and Dew Point (NIST option) Discontinued - No Replacement
401017	Big Digit Window Thermometer Attach to any window to view outside temperature Discontinued - No Replacement

Extech Main Page

Extech Price List