Handheld Temperature Humidity Meter High Accuracy ABS Hygrometer Thermometer Temp Detector Item Type: Temperature Humidity Meter Model: HT607 Material: ABS Battery: 1.5V AAA batteries x 3 (shipping without batteries) Use: Applicable to planting, breeding, industrial production, laboratory and other areas of temperature and humidity detector is a number of areas of producers often need an instrument. Basic Parameters Ambient Temperature Range: -20.0℃ to 60.0℃ (-4.0℉ to 140.0℉) Accuracy: 0.0℃ to 45.0℃ (32℉ to 113℉) ±1.0℃ or 2.0℉ Resolution: 0.1 or 1 Ambient Humidity Range: 0.0% to 99.9%RH Accuracy: 20% to 80%, ±3.0%RH Others: ±4.0%RH Resolution: 0.1 Wet Bulb Temperature Range: -20.0℃ to 60.0℃ (-4.0℉ to 140.0℉) Accuracy: 0.0℃ to 45.0℃ (32℉ to 113℉) ±1.0℃ or 2.0℉ Others: ±1.5℃ or 3.0℉ Resolution: 0.1 or 1 Dew Point Temperature Range: -50.0℃ to 60.0℃ (-58℉ to 140℉) Accuracy: 0.0℃ to 45.0℃ (32℉ to 113℉) ±1.0℃ or 2.0℉ Others: ±1.5℃ or 3.0℉ Resolution: 0.1 or 1