The Extech RH490 hygro-thermometer is a precision hygro-thermometer specifically designed for HVAC and water damage restoration contractors. The Extech RH490 hygro-thermometer features a fast 30 second response time and an accuracy of ±2%. The dual backlit display simultaneously shows humidity or water vapor in grains per pound (g/kg) along with either temperature, dew point, or wet bulb.
The Extech RH490 hygro-thermometer features a slim, handheld design with rubberized sides for better grip and for one hand operation. The Extech RH490 hygro-thermometer has data hold and min/max functions as well as auto power off with disable and low battery indicator. The Extech RH490 hygro-thermometer includes a carrying case and 9V battery.
The Extech RH490 ThermoHygrometer is well known in the restoration community for its fast response time load of features. It also offers operators unparalled accuracy and durability. Comes with a carry case and 9V battery. 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 Specifications: Humidity 0 to 100%RH Temperature (internal) -4 to 199°F (-20 to 100°C) 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 7.8x1.7x1.3" (200x45x33mm) Weight 7oz (200g)
