Extech HD500 Psychrometer
The HD500 is packed with many features enabling you to get all of your environmental readings accurately and quickly.  It’s built in Infrared Thermometer allows you to take non-contact temperature readings at a 30:1 distance to target ratio. The included K-type thermometer will then allow you to take contact measurements up to 2501°F. Some other readings it is capable of include:
- Air Temperature
- RH Range
- Dew Point
- Wet Bulb
Included with the gauge is the type K temperature probe, Windows compatible software with USB cable, built in stand, 9v Battery, and a hard carrying case.