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Environmental Testers > Digital Thermo-Hygrometers
Digital Thermo-Hygrometers
RH101 - Hygro-Thermometer + InfraRed Thermometer
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Extech RH101 - Hygro-Thermometer + InfraRed Thermometer

Humidity, Air Temperature and non-contact Surface Temperature measurements

 

Features:

  • Combination Humidity meter plus InfraRed Thermometer features a super large backlit dual display
  • Large backlit LCD dual display
  • Primary and Secondary displays
  • Primary display is user selectable for IR or Humidity; Secondary always displays ambient temperature
  • InfraRed thermometer has built-in laser pointer and an 8:1 distance to target ratio
  • Data Hold and MAX, Auto power off

List Price: $169.99

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RH300 - Hygro-Thermometer Psychrometer
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Extech RH300 - Hygro-Thermometer Psychrometer

Humidity, Wet bulb, Dew Point, Air Temperature plus External Probe Temperature measurements

 

Features:

  • Simultaneous display of %RH, Temperature and Dew point or Wet Bulb or Probe Temperature
  • Wet bulb measurements without slinging
  • Calculates T1-T2 differential (Air Temperature-External Probe Temperature) using optional probe
  • Unique sensor cap design twists to closed position for protection during storage
  • Switchable °F/°C temperature units with 0.1° resolution

 

Supplies & Accessories:

RH300-CAL - Humidity Calibration Kit


List Price: $94.99

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RH305 - Hygro-Thermometer Psychrometer Kit
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Extech RH305 - Hygro-Thermometer Psychrometer Kit
Includes a RH300 with 33% and 75% calibration bottles, PC cable, and case
List Price: $139.99

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RH350 - Dual Input Hygro-Thermometer Psychrometer
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Extech RH350 - Dual Input Hygro-Thermometer Psychrometer

Psychrometer with two Type K inputs for Superheat plus memory

 

Features:

  • Superheat differential measurements: T1-T2, Air-T1, T1-Dewpoint
  • Dual Type K external temperature probe input
  • Simultaneous display of %RH, Temperature and Dew point or Wet Bulb or External Probe Temperatures
  • Built-in RS-232 interface (optional RS-232 cable) - uses Windows® Hyperterminal to download data to a PC
  • Memory stores up to 99 data records
  • Complete with two Type K bead wire temperature probes and 4 AAA batteries

List Price: $139.99

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RH355 - Dual Input Hygro-Thermometer Psychrometer Kit
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Extech RH355 - Dual Input Hygro-Thermometer Psychrometer Kit

Includes a RH350 with 33% and 75% calibration bottles, 2 Type K probes, PC cable, and case

 

Features:

  • Superheat differential measurements: T1-T2, Air-T1, T1-Dewpoint
  • Dual Type K external temperature probe input
  • Simultaneous display of %RH, Temperature and Dew point or Wet Bulb or External Probe Temperatures
  • Built-in RS-232 interface (optional RS-232 cable) - uses Windows® Hyperterminal to download data to a PC
  • Memory stores up to 99 data records
  • Includes a RH350 with 33% and 75% calibration bottles
  • Includes PC serial cable and carrying case

List Price: $189.99

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RH390 - Precision Psychrometer
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Extech RH390 - Precision Psychrometer

Highest 2% RH accuracy with fast 30 seconds Response Time

 

Features:

  • Fast response time (<30 seconds)
  • Dual backlit display
  • Simultaneous display of: Humidity/Temperature, Humidity/Dew Point or Humidity/Wet Bulb
  • Data Hold and Min/Max functions

List Price: $189.99

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RH405 - Digital Psychrometer + InfraRed Thermometer Kit
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Extech RH405 - Digital Psychrometer + InfraRed Thermometer Kit

Includes a RH401 with 33% and 75% calibration bottles, PC cable, and case

 

Features:

  • Kit includes:
    • RH401 - Digital Psychrometer with InfraRed Thermometer
    • RH401-CAL - 33% and 75% RH calibration reference bottles
    • 407752 - RS-232 PC cable and software for RH401
  • Kit supplied in hard plastic carrying case

List Price: $219.99

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RH490 - Precision Hygro-Thermometer
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Extech RH490 - Precision Hygro-Thermometer

Highest 2% RH accuracy with Grains Per Pound (GPP) Display

 

Features:

  • Less then 30 seconds of RH response time
  • Water vapor in GPP
  • Dual backlit display
  • Simultaneous display of: Humidity/Temperature, Humidity/Dew Point or Humidity/Wet Bulb
  • Slim design with rubberized side grips
  • Data Hold and Min/Max functions

List Price: $339.99

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SDL500 - Hygro-Thermometer/Datalogger
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Extech SDL500 - Hygro-Thermometer/Datalogger

Description: Records data on an SD card in Excel® format

Features:

  • Relative Humidity, Temperature, Dew Point, and Wet Bulb measurement
  • Adjustable data sampling rate
  • Stores 99 readings manually and 20M readings via 2G SD card
  • Type K/J Thermocouple input for high temperature measurements
  • Large backlit dual LCD display
  • Record/Recall MIN, MAX, Data Hold and Auto power off
  • Built-in PC interface
  • Complete with 6 x AA batteries, SD card, carrying case and Humidity/Temperature probe

Supplies & Accessories:
872502 - Bead Wire Type J Temperature Probe (-328 to 392°F)
TP870 - Bead Wire Type K Temperature Probe (-40 to 482°F)
TP200 - Type K Pipe Clamp Temperature Probe (-4 to 200°F)
TP400 - High Temperature Type K Pipe Clamp (-4 to 450°F)


List Price: $399.99

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