Description
Features
- Fast response time (<30 seconds)
- Dual backlit display
- Simultaneous display of: Humidity/Temperature, Humidity/Dew Point or Humidity/Wet Bulb
- Data Hold and Min/Max functions
Specifications
- Humidity: 0 to 100%RH
- Temperature (Internal): -22 to 199°F (-30 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: 7.8×1.7×1.3″ (200x45x33mm)
- Weight: 7oz (200g)
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.
Explore more from our collection.




Reviews
There are no reviews yet.