 |
| Extech Precision Hygro-Thermometer |
| RH490 |
|
$319.99 |
|
| Extech Precision Hygro-Thermometer with NIST Thermometer |
| RH490-NIST |
|
$404.99 |
|
Extech Model RH490 Features:
- Less than 30 second RH response time
- Water vapor in GPP (g/kg)
- Dual backlit display
- Simultaneous display of:
-
- Humidity or GPP (g/kg) plus Temperature
- Humidity or GPP (g/kg) plus Dew Point
- Humidity or GPP (g/kg) plus 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
NOTE: For an additional charge, Extech will supply your meter complete with a Certificate of Calibration Traceable to N.I.S.T. with Data.
| Specifications |
|
| Humidity |
0 to 100%RH |
| Temperature (Internal) |
-22 to 199°F (-30 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) |
| Absolute Humidity |
0 to 1120GPP (0 to 160g/kg) |
| Dimensions |
7.8 x 1.7 x 1.3" (200 x 45 x 33mm) |
| Weight |
7oz (200g) |
|
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