Extech RH490 Thermo‑Hygrometer with Grains Per Pound (GPP)

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SKU#: OE-RH490-EA

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Product Highlights

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.

Humidity range: 0% to 100%
Humidity accuracy: +/-2%
Temperature range:-4° to 199°
Temperature accuracy: +/-1.8°
Also measures dewpoint, wet bulb and grains per pound (GPP)

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Product Description

Features:

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, and 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

Specifications:

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

Technical Specifications

Brand	Extech
Thermo-Hygrometer RH Accuracy	+/- 2%
Thermo-Hygrometer Temp Accuracy	Â± 1.8Â°F
Thermo-Hygrometer Temp Range	-22Â° to 199Â°F
Thermo-Hygrometer Calculations	Dew Point, GPP, Rh, Temp, Wet Bulb
Thermo-Hygrometer Temp Accuracy	± 1.8°F
Thermo-Hygrometer RH Range	0 to 100%
Category	Thermo-Hygrometer
Warranty Information	One (1) year from the date of purchase on parts and labor
Condition	new