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Extech RH300-NIST Hygro-Thermometer Psychrometer,  -

Downloads: datasheet manual

Extech RH300-NIST Hygro-Thermometer Psychrometer, includes ISO Certificate

Model: RH300-NIST

Hygro-Thermometer Psychrometer that takes humidity wet bulb, dew point, air temperature plus external probe temperature measurements. This product includes an ISO Certificate with full Data and Uncertainties.

Sale Price $265.50 CAD
Regular Price $410.00 CAD
Availability 1 to 2 Weeks

Extech RH300-NIST Offers


  • Simultaneous display of %RH, Temperature and Dew point or Wet Bulb or Probe Temperature
  • Wet bulb measurements without slinging
  • Calculates T1-T2 differential (Air Temperature-External Probe Temperature) using optional probe
  • Unique sensor cap design twists to closed position for protection during storage
  • Switchable °F/°C temperature units with 0.1° resolution

Extech RH300-NIST Specifications

Humidity Range 10 to 90%RH
Humidity Max. Resolution 0.1%RH
Humidity Basic Accuracy ±3%RH
Temperature (internal) Range -4 to 122°F (-20 to 50°C)
Temperature (internal) Max. Resolution 0.1°
Temperature (internal) Basic Accuracy ±1.8°F or ±1°C
Dew Point -90.4 to 122°F (-68.0 to 49.9°C)
Wet Bulb -6.9 to 122°F (-21.6 to 49.9°C)
Dimensions 7 x 1.9 x 1" (178.5 x 48.4 x 24.7mm)
Weight 3.3oz (95g)
Click here for complete specifications on the Extech RH300-NIST

What's included with the Extech RH300-NIST

  • Digital Psychrometer
  • 2X AAA Batteries

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