Extech RH490 Psychrometer – Style (Psychrometer): Hand Held, Accuracy: ±2%RH, ±1.8°F/1°C, Measurement Types (Psychrometer): Temperature T/C

Description Extech RH490 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.