Extech Extech RH490 Precision Hygro-Thermometer with Grains Per Pound (GPP) Display

Style:Standard View larger Precision Hygro-Thermometer Psychrometer Featuring a slim design with rubberized sides for better grip, the Extech RH490 is specifically designed for HVAC and water damage restoration contractors. This meter measures Temperature (-22 to 199 degrees F/-30 to 100 degrees C), Humidity (0 to 100 percent RH), Dew Point (-22 to 199 degrees F/-30 to 100 degrees C), Wet Bulb (32 to 176 degrees F/0 to 80 degrees C), and Mixing Ratio in GPP (grains per pound/grains per kilogram) 0 to 1120 GPP/0 to 160g/kg. Other Features Less than 30 second RH response time with 2 percent RH accuracy, dual backlit LCD display, Data Hold, Min/Max, Auto Power Off (with disable), and low battery indicator. What's in the Box Complete with carrying case, 9-volt battery, and user manual More Extech Instruments to Choose From View larger RH390 Dual Display Hygro-Thermometer Psychrometer Precision meter measures relative humidity from 0 to 100 percent with an accuracy of ±2 percent RH and Temperature from -22 to 1...