Extech RH390 Precision Psychrometer; Fast Response Time (<30 Seconds); Dual Backlit Display; Simultaneous Display of: Humidity/Temperature, Humidity/Dew Point or Humidity/Wet Bulb

Measure humidity and temperature s...

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Extech RH390 Precision Psychrometer; Fast Response Time (<30 Seconds); Dual Backlit Display; Simultaneous Display of: Humidity/Temperature, Humidity/Dew Point or Humidity/Wet Bulb

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.


Key Features
  • Fast response time (<30 seconds)
  • Dual backlit display
  • Simultaneous display of: Humidity/Temperature, Humidity/Dew Point or Humidity/Wet Bulb
  • Slim design with rubberized sides for better grip and for one hand operation
  • Data Hold and Min/Max functions
  • Auto power off with disable and low battery indicator

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"x1.7"x1.3" (200x45x33mm)
  • Weight: 7oz (200g)


  • Measures relative humidity from 0 to 100% and temperature from -4 to 140° F (-20 to 60° C)
  • Accuracy ±2% from 20% to 90%; ±1.8°F (±1°C)
  • Dual display of humidity and temperature or humidity and dew point or humidity and wet bulb
  • Capacitance sensor responds under to humidity changes in under 30 seconds
  • Slim design with rubberized ides for better grip
  • Measures relative humidity from 0 to 100% and temperature from -4 to 140° F (-20 to 60° C)
  • Accuracy ±2% from 20% to 90%; ±1.8°F (±1°C)
  • Dual display of humidity and temperature or humidity and dew point or humidity and wet bulb
  • Capacitance sensor responds under to humidity changes in under 30 seconds
  • Slim design with rubberized ides for better grip

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