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EXTECH RH300NIST Digital Psychrometer

The Extech RH300-NIST digital psychrometer provides reliable simultaneous measurements of relative humidity, air temperature, and dew point or wet bulb temperature. It features an external probe for differential temperature calculations without slinging, ensuring accurate readings. The device includes a twist-lock sensor cap to protect sensitive components during storage and supports switchable Fahrenheit and Celsius units with 0.1° resolution. Ideal for HVAC and environmental monitoring, this psychrometer offers max/min recording, data hold, and auto power-off, ensuring easy, precise, and convenient measurements in various conditions.

Authorized Distributors
Source:DigiKey
Part No:RH300-NIST
Stock:0
Inv Date:06-05-2026
Price: Unit price: $211.5
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Part No:RH300-NIST
Stock:0
Inv Date:06-06-2026
Price: N/A
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Part No:RH300-NIST
Stock:0
Inv Date:06-05-2026
Price: Unit price: $211.5
Buy/RFQ:
Part No:RH300-NIST
Stock:0
Inv Date:06-05-2026
Price: Unit price: $211.5
Buy/RFQ:
Part No:RH300-NIST
Stock:0
Inv Date:06-05-2026
Price: Unit price: $211.5
Buy/RFQ:
Part No:RH300-NIST
Stock:19
Inv Date:06-05-2026
Price: Unit price: $211.5
Buy/RFQ:
Part No:RH300-NIST
Stock:0
Inv Date:06-05-2026
Price: Unit price: $211.5
Buy/RFQ:
Part No:RH300-NIST
Stock:4
Inv Date:06-05-2026
Price: Unit price: $244
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Part No:RH300-NIST
Stock:0
Inv Date:06-05-2026
Price: N/A
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EXTECH RH300NIST Digital Psychrometer Specifications:

  • Range Humidity: 10 to 90%RH, Temperature (internal): 4 to 122°F (-20 to 50°C), External temperature: -6.9 to 122°F
  • Resolution: 0.1%RH, 0.1°F / 0.1°C
  • Accuracy: ±3%RH, ±1.8°F or ±1°C
  • Dimensions: 7.2 x 1.9 x 0.97 inches (178.5 x 48.4 x 24.7 mm)
  • Weight: 3.3 oz (95 g)
  • Features: External probe compatibility, switchable °F/°C, data hold, Max/Min, auto power off, twist sensor cap
  • Power: 2 AAA batteries, included
  • Optional accessories: External probe (TP890), calibration bottles (RH305 kit)

Buy the Extech Series RH Series Digital Psychrometer: RH300NIST

Purchase the Extech RH300-NIST digital psychrometer online today for accurate environmental measurements. Featuring simultaneous humidity, temperature, dew point, and wet bulb readings, it includes an external probe for differential measurements, a protective sensor cap, and switchable units for versatile use. Its compact design, Max/Min, data hold, and auto power-off make it ideal for HVAC systems, laboratories, and industrial environments. Enhance your measurement accuracy and efficiency by ordering online now and ensure reliable environmental data for your projects.

Order your Extech Series RH300NIST digital psychrometer today and experience precise humidity and temperature measurement for professional environmental monitoring.

Frequently Asked Questions

Where can I buy EXTECH RH300NIST?

You can click on the BUY or RFQ button to purchase RH300NIST from an authorized EXTECH distributor.

How do I troubleshoot issues or seek technical support for part RH300NIST?

You can download the RH300NIST datasheet or visit the EXTECH website for support.

Who is the manufacturer of RH300NIST?

EXTECH

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