Ambient Weather WS-HT350 Fast Response Air Thermo-Hygrometer with Wet Bulb Psychrometer, Dew Point Meter

Specifications:Temperature:Range: -22 to 199 F (-30 to 100 C)Accuracy: 0.9 F ( 0.5 C) at 25C, 1.5 F ( 0.8 C) otherwiseResolution: 0.01 F / CHumidity:Range: 0 to 100%Accuracy: 2% from 20 to 80% at 25C, 2.5% otherwiseResolution: 0.01%Other Specifications:Dimensions: 8.75 x 2.5 x 1.75"Display Dimensions: 1.5" x 1.5" (38.1 mm x 38.1 mm)Sensor Type: Relative humidity and temperature multi sensor module located at the probe tip with calibrated digital outputResponse Time: %RH: 10 seconds for stabilization in still air, temperatureSampling Rate: 0.4 secondsOut of range:"OL" indication on the displayLow battery indication: The icon is displayed when the battery voltage drops below the operating level.Operating Conditions: 32 F to 104 F (0 C to 40C);Storage Conditions: 14 F to 140 F (-10 C to 60C);Power: One standard 9V, NEDA1604 or 6F22 battery (included).Dimensions: 8.8 (H) x 1.8 (W) x 1.3 (D) or 225 (H) x 45 (W) x 34 (D) mmWeight: 0.45 lbs (200g)Certification: FCC and CE.