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Extech RH390 Precision Psychrometer
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Extech RH390
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Features:
- Dual backlit display
- Simultaneous display of: Humidity/Temperature, Humidity/Dew Point, Humidity/Wet Bulb
- Slim design with rubberized sides for better grip and for one hand operation
- Data Hold and Min/Max functions
- Auto power off with disable and low battery indicator
- Complete with carrying case and 9V battery
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Description
Models, Options, & Accessories
| Model |
Description |
List Price |
Sale Price |
| RH390 |
PSYCHROMETER/PRECISION |
$179.99 |
| $161.99 |  |
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| RH390-NIST |
PSYCHROMETER W/NIST RH390 |
| $284.99 | |
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Specifications
| General |
| Humidity |
0 to 100%RH |
| Temperature (internal) |
-4 to 140°F (-20 to 60°C) |
| Basic Accuracy |
±2%RH, ±3°F/2°C |
| Max. Resolution |
0.1%RH, 0.1°F/°C |
| Dewpoint |
-22 to 212°F (30 to 100°C) |
| Wet Bulb |
32 to 176 °F (0 to 80°C) |
| Dimensions |
7.8x1.7x1.3” (200x45x33mm) |
| Weight |
7oz (200g) |
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