The Extech Precision Psychrometer RH390 has a high 2% RH accuracy, a fast response time (less than 30 seconds), and a dual backlit display. The RH390 can simultaneously display humidity/temperature, humidity/dew point, or humidity/wet bulb measurements. Scroll down to see more RH390 digital psychrometer features and specifications.Read More...
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The Extech RH390 Precision Psychrometer is available with standard factory calibration or with NIST Calibration Certification (adds 5 days to product lead time).
The Extech RH390 Precision Psychrometer offers the highest 2% RH accuracy with a fast, 30 second response time. All of Extech assessment tools are factory calibrated to specifications and work to spec.
|Humidity||0 to 100%RH|
|Internal Temperature||-4 to 199°F (-20 to 100°C)|
|Basic Accuracy||±2%RH, ±1.8°F/1°C|
|Max Resolution||0.1%RH, 0.1°F/°C|
|Dewpoint||-22 to 199°F (-30 to 100°C)|
|Wet Bulb||32 to 176 °F (0 to 80°C)|
|Dimensions||7.8" H x 1.7" W x 1.3" D|
|Weight||7 oz (200g)|