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The Extech RH490 Thermo-Hygrometer is well known in the restoration community for its fast response time load of features. It also offers operators unparalleled accuracy and durability. Comes with a carry case and 9V battery.
- Less than 30 seconds 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
- Humidity: 0 to 100% RH
- Temperature (internal): -4 to 199°F
- Accuracy: ±2%RH
- Max. Resolution: 0.1%RH
- Dewpoint: -22 to 199°F
- Wet Bulb: 32 to 176 °F
- Absolute Humidity: 0 to 1120GPP
- Dimensions: 7.8" x 1.7" x 1.3"
- Weight: 7 oz
Brand Extech Category Thermo-Hygrometer Warranty Information One (1) year from the date of purchase on parts and labor Condition new Thermo-Hygrometer Calculations Dew Point, GPP, Rh, Temp, Wet Bulb Thermo-Hygrometer RH Range 0 to 100% Thermo-Hygrometer Temp Accuracy ± 1.8°F Thermo-Hygrometer Temp Range -22° to 199°F Thermo-Hygrometer RH Accuracy +/- 2%
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