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Humidity, Wet bulb, Dew Point, Air Temperature plus External Probe Temperature measurements

Extech RH300 Hygro-Thermometer Psychrometer

Model: RH300 Go to Product Support
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The RH300 is a compact meter that is ideal for field applications. Simultaneously displays relative humidity (10% to 90% RH), air temperature and dew point or wet bulb. Calculates T1-T2 differential (air temperature minus external probe temperature) using optional probe (TP890), and T2 minus dew point. Built-in protective sensor cap. Other features include Data Hold, Auto Power Off, and MAX/MIN reading. Complete with 2 AAA batteries.

  • Multi-display

    Simultaneous display of %RH, Temperature and Dew point or Wet Bulb or Probe Temperature

  • T1-T2 Differential

    Calculates T1-T2 differential (air temperature minus external probe temperature) using optional probe (TP890), and T2 minus dew point

  • Easy Storage

    Unique sensor cap design twists to closed position for protection during storage

Specifications
General Specifications
Dew Point
-90.4 to 122 °F (-68.0 to 49.9 °C)
Relative Humidity
10 to 90%
Relative Humidity Basic Accuracy
±3%
Relative Humidity Max Resolution
0.1%
Temperature (Air)
-4 to 122 °F (-20 to 50 °C)
Temperature (Air) Basic Accuracy
±1.8 °F or ±1 °C
Temperature (Air) Max Resolution
0.1 °
Temperature (Type K) Max Resolution
-4 to 158 °F (-20 to 70 °C)
Temperature (Type N)
±1.8 °F or ±1 °C
Temperature (Type N) Basic Accuracy
0.1 °
Wet Bulb
-6.9 to 122 °F (-21.6 to 49.9 °C)
Additional Details
Certifications
CE
Dimensions
7 × 1.9 × 1" (178.5 × 48.4 × 24.7mm)
Power
2 × AAA (1.5V) batteries
Warranty
2 years
Weight
3.3oz (95g)
Related Documents
Export Restrictions

Export Restrictions

The information contained in this page pertains to products that may be subject to the International Traffic in Arms Regulations (ITAR) (22 C.F.R. Sections 120-130) or the Export Administration Regulations (EAR) (15 C.F.R. Sections 730-774) depending upon specifications for the final product; jurisdiction and classification will be provided upon request.

Extech RH300 Hygro-Thermometer Psychrometer - Model: RH300

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