Extech Psychrometer and 30:1 Infrared Thermometer Plant Stress

In stock

This psychrometer comes with a built in InfraRed thermometer with a range of -58 to 932F (-50 to 500C). Great for measuring the relative humidity, dew point, wet bulb, air temp and surface temp.

Extech Psychrometer and 30:1 Infrared Thermometer Plant Stress (HD500)


  • IR thermometer for non-contact temperature measurements
  • Type K thermometer for contact temperature measurement
  • Highest 2% RH accuracy
  • Large triple LCD backlit display
  • Auto power off
  • USB port includes PC software
  • Complete with type K bead wire probe (-22 to 572F/ -30 to 300C), PC software, USB cable, built-in stand, case and 9V battery

This precision psychrometer with an IR thermometer has an aspect ratio of 30:1. With a built in interface so you can connect and upload information to your computer and easily see information and trends. This meter has a 3 year warranty and is a combination humidity meter, type K thermometer and infrared thermometer.


  • RH Range 0 to 100%RH
  • Basic Accuracy (Humidity) ±2%RH
  • Type K Temperature -148 to 2501°F (-100 to 1372°C)
  • Basic Accuracy (Type K) ±(1% + 1°C)
  • Air Temperature 14 to 140°F (-10 to 60°C)
  • Basic Accuracy (Air Temp) ±(2% ±4ºF/2°C)
  • Infrared Thermometer -58 to 932°F (-50 to 500°C)
  • Basic Accuracy IR ±2% or ±4°F/2°C
  • Dew Point -90.4 to 140°F (-68 to 60°C)
  • Wet Bulb -6.88 to 140°F (-21.6 to 60°C)
  • Dimensions 10 x 2.9 x 2" (255 x 75 x 50mm)
  • Weight 12.3oz (350g)

Unit Ship Weight: 4 lbs

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