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EXTECH RH305NIST Digital Psychrometer

The Extech RH305-NIST humidity meter provides simultaneous measurements of relative humidity, temperature, dew point, and wet bulb temperature, even without slinging. It calculates the difference between air temperature and external probe temperature using an optional probe, making it ideal for HVAC, labs, and maintenance. Its sensor cap twists to a closed position for protection during storage. The device features switchable °F/°C units with 0.1° resolution, Max/Min readings, auto power off, and calibration options, ensuring precise, reliable data in various environmental applications.

Authorized Distributors
Part No:RH305-NIST
Stock:0
Inv Date:06-06-2026
Price: N/A
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Part No:RH305-NIST
Stock:0
Inv Date:06-05-2026
Price: Unit price: $307.99
Buy/RFQ:
Part No:RH305-NIST
Stock:0
Inv Date:06-05-2026
Price: Unit price: $307.99
Buy/RFQ:
Part No:RH305-NIST
Stock:0
Inv Date:06-05-2026
Price: Unit price: $307.99
Buy/RFQ:
Part No:RH305-NIST
Stock:0
Inv Date:06-05-2026
Price: Unit price: $360
Buy/RFQ:

EXTECH RH305NIST Digital Psychrometer Specifications:

  • Range Humidity: 10 to 90%RH
  • Range Temperature: 4 to 122°F (-20 to 50°C)
  • Wet Bulb Range: -6.9 to 122°F
  • Resolution Humidity: 0.1%RH
  • Resolution Temperature: 0.1°F or 0.1°C
  • Accuracy Humidity: ±3%RH at 10-90%RH
  • Accuracy Temperature: ±1.8°F or ±1°C
  • Dimensions: 71.91 inches (1785 x 48.4 x 24.7mm)
  • Weight: 3.3 oz (959 g)
  • Display: Simultaneous RH, Temperature, Dew Point or Wet Bulb
  • Features: Data Hold, Max/Min readings, Auto Power Off, External Probe compatible
  • Power: Includes 2 AAA batteries
  • Calibration: Traceable to NIST with optional calibration bottles

Buy the Buy Extech RH305-NIST Digital Psychrometer Part Number RH305NIST Online

Enhance your environmental monitoring with the Extech RH305-NIST digital psychrometer, offering simultaneous measurement of humidity, temperature, dew point, and wet bulb temperature. Its external probe capability allows precise differential temperature measurement, essential for HVAC, research, and maintenance. The device features a protective sensor cap, switchable °F/°C units with 0.1° resolution, and Max/Min recording functions. Compact and battery-powered, it provides reliable, traceable calibration for professional use, making it an ideal tool for laboratories, industrial, and residential applications seeking accurate environmental data.

Order your Extech RH305-NIST humidity meter today and experience accurate, versatile environmental measurements for HVAC, labs, or maintenance projects.

Frequently Asked Questions

Where can I buy EXTECH RH305NIST?

You can click on the BUY or RFQ button to purchase RH305NIST from an authorized EXTECH distributor.

How do I troubleshoot issues or seek technical support for part RH305NIST?

You can download the RH305NIST datasheet or visit the EXTECH website for support.

Who is the manufacturer of RH305NIST?

EXTECH

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