Product Description
Extech RH390 Precision Psychrometer with NIST Certificate
This model ships with a NIST-traceable calibration certificate (Extech part RH390-NIST).
The Extech RH390 precision psychrometer measures humidity, temperature, dew point and wet bulb with ±2% RH accuracy.
Key Features
- ±2% relative humidity accuracy
- Dew point and wet bulb
- Air temperature -22 to 199°F
- Pocket size
Specifications
| Model | RH390-NIST |
|---|---|
| Relative Humidity | 0 to 100%, ±2% |
| Air Temperature | -22 to 199°F (-30 to 100°C), ±1.8°F/1°C |
| Dew Point | -22 to 199°F (-30 to 100°C) |
| Wet Bulb | 32 to 176°F (0 to 80°C) |
| Dimensions | 7.8 × 1.7 × 1.3" (200 × 45 × 33mm) |
| Power | 1 × 9V battery |
| Warranty | 2 years |
| Weight | 7oz (200g) |
