RH390 Precision Psychrometer

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<B>Data Sheet</B>:

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The RH390 Precision Psychrometer accurately measures humidity and temperature simultaneously.

The dual display can be easily changed to show temperature & humidity, wet bulb & humidity or dew point & humidity. This unit is a great choice for handheld humidity measurements with a quick, 30 second response time and top end accuracy.


  • Dual-display with back light
  • Slim design with rubberized sides
  • Data hold and Min/Max functions
  • Auto Power Off and Low Battery Indicator
  • Supplied with carrying case and 9V battery


  • Ranges:
    • Humidity: 0 to 100%
    • Temperature: -22°F to 199°F (-30°C to 100°C)
    • Dew Point: -22°F to 199°F (-30°C to 100°C)
    • Wet Bulb: 32°F to 176°F (0°C to 80°C)
  • Accuracy: ±2%  |  ±1.8°F (1.0°C)
  • Resolution: 0.1% RH  |  0.1°
  • Dimensions: 7.8" x 1.7" x 1.3" (200 x 45 x 33 mm)
  • Weight: 7 oz (200 g)



Data Sheet: