![Precision Psychrometer - Highest 2% RH Accuracy With Fast 30 Seconds Response Time](https://d27wgn5g4t3wja.cloudfront.net/products/74277b44-e1f1-4d36-ae9b-65075e6d2184/405358.png)
Precision Psychrometer - Highest 2% RH Accuracy With Fast 30 Seconds Response Time
Extech RH390 - Extech Instruments Corporation
Measure humidity and temperature simultaneously with the RH390 Precision Psychrometer from Extech. A dual-illuminated readout can be alternated to display wet bulb and humidity, or dew point and humidity, or temperature and humidity. This handheld device registers temperatures from -22 degrees to 199 degrees F (-30 degrees to 100 degrees C) and measures the full spectrum of relative humidity with ±2% accuracy between 20 and 90% RH. Complete with carrying case and 9V battery.
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