The Extech RH390 Precision Psychrometer offers the highest 2% RH accuracy with a fast, 30 second response time. All of Extech assessment tools are factory calibrated to specifications and work to spec.
Features - Extech RH390 Precision Psychrometer
- Offers a dual backlit display
- Made with a slim design with rubberized sides for better grip and for one hand operation
- Includes Data Hold and Min/Max functions
- Auto-powers off with disable feature
- Alerts user with low battery indicator
- Has a simultaneous display of humidity/temperature, humidity/dew point or humidity/wet bulb
Model Includes:
- 9V Battery
- Carrying case
Technical Specifications
| Humidity | 0 to 100%RH |
| Internal Temperature | -4 to 199°F (-20 to 100°C) |
| Basic Accuracy | ±2%RH, ±1.8°F/1°C |
| Max Resolution | 0.1%RH, 0.1°F/°C |
| Dewpoint | -22 to 199°F (-30 to 100°C) |
| Wet Bulb | 32 to 176 °F (0 to 80°C) |
| Dimensions | 7.8" H x 1.7" W x 1.3" D |
| Weight | 7 oz (200g) |
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Product Reviews for Extech RH390 Precision Psychrometer
List Price: $99.95 Our Price: $89.95 |  | List Price: $99.00 Our Price: $89.00 | | List Price: $135.00 Our Price: $98.00 | | List Price: $499.00 Our Price: $289.00 |
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