Extech RH300 Digital Psychrometer
The Extech Digital Psychrometer calculates T1-T2 differential (air temperature minus external probe temperature).
Features
- Wet bulb measurements without slinging
- Switchable °F/°C temperature units with 0.1° resolution
- Data hold freezes current reading on display
| Image | Part# | Product Description | Price | Stock | Order | |
|---|---|---|---|---|---|---|
 | RH300 | Digital Psychrometer | $109.99 | Usually ships in 1-2 weeks | ||
 | RH300-NIST | Digital Psychrometer, NIST traceable | $243.09 | Usually ships in 1-2 weeks | ||
| Image | Part# | Product Description | Price | Stock | Order | |
|---|---|---|---|---|---|---|
 | RH300-CAL | Calibration kit for 445715 & 445815 | $68.19 | Usually ships in 1-2 weeks | ||
| | TP890 | Thermistor probe for RH300 | $15.99 | Usually ships in 1-2 weeks | ||
The Extech Digital Psychrometer simultaneously displays % relative humidity, temperature, dew point, or wet bulb or probe temperature. The wet bulb measurements are made without slinging. The meter calculates T1-T2 differential (air temperature minus external probe temperature) using optional probe and T2-dew point. The unique sensor cap design twists to the closed position for protection during storage. Additional meter features include switchable °F/°C temperature, data hold, max/min readings, and automatic power off.
- Humidity range: 10 to 90%RH
- Humidity maximum resolution: 0.1%RH
- Humidity basic accuracy: ±3%RH
- Temperature (internal) range: -4 to 122°F (-20 to 50°C)
- Temperature (internal) maximum resolution: 0.1°
- Temperature (internal) basic accuracy: ±1°F or ±0.6°C
- Temperature (external) range: -4 to 158°F (-20 to 70°C)
- Temperature (external) maximum resolution: 0.1°
- Temperature (external) basic accuracy: ±1°F or ±0.6°C
- Dew point range: -90.4 to 122°F (-68.0 to 49.9°C)
- Wet bulb range: -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)
- (1) Digital Psychrometer
- (2) AAA batteries
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