Psychrometer with InfraRed Thermometer

Extech HD500

Model: HD500 Go to Product Support
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The HD500 Psychrometer with Infrared Thermometer combines 3 in 1 with humidity meter, type K thermometer and infrared thermometer functions. The HD500 features a large triple LCD backlit display, built in USB port, minimum/maximum, data hold and auto power off functions. Built-in InfraRed Thermometer for non-contact temperature measurement to 932°F (500°C). Includes a 3 year warranty, Windows compatible software with USB cable, Type K bead wire probe, carrying case and 9-volt battery.

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  • Built-in InfraRed Thermometer

    For non-contact temperature measurement to 932°F (500°C)

  • IR Thermometer

    30:1 distance to target ratio

  • Type K Thermometer

    For contact temperature measurement to 2501°F (1372°C)

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General Specifications
Dew Point
-90.4 to 140 °F (-68 to 60 °C)
Distance to Target Ratio
Relative Humidity
0 to 100%
Relative Humidity Basic Accuracy
Temperature (Air)
14 to 140 °F (-10 to 60 °C)
Temperature (Air) Basic Accuracy
±(2% ±4°F/2 °C)
Temperature (IR) Basic Accuracy
-58 to 932 °F (-50 to 500 °C)
Temperature (IR) Max Resolution
±2% or ±4°F/2°C
Temperature (Type K) Max Resolution
-148 to 2501 °F (-100 to 1372 °C)
Temperature (Type N)
±(1% + 1 °C)
Wet Bulb
-6.88 to 140 °F (-21.6 to 60 °C)
Additional Details
10 × 2.9 × 2" (255 × 75 × 50mm)
1 × 9V battery
3 years
12.3oz (350g)

Extech HD500 - Model: HD500

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