Item Type: Anemometer Material: ABS Battery Model: 1 x button battery CR2032, shipped with matching battery. Battery capacity: 150mah Thermometer: NTC Thermometer Working Temperature: -10℃-45℃, that is, 14℉-113℉. Working Humidity: Relative Humidity Less Than 90 percent Storage Temperature: -40℃-60℃, that is, -40℉-140℉. 1,Smart Testing: This anemometer can be used to test wind speed, wind temperature, wind force and so on, meanwhile the handheld wind speed meter is easy to operate. 2,High Accuracy: Able to test the maximum value, current value as well as calculating the average value, the air flow tester tool has higher accuracy for working. 3,Broad Utility: Can be used for air conditioning wind speed testing, environmental wind speed testing, fan wind speed testing, micro wind speed testing and so on. 4,Clear Display: Equipped with a large LCD screen, the wind speed sensor with backlight is very clear to read, thus greatly improving the overall work efficiency. 5,Practical Use: Designed to have 5 units of m or s, km/h, ft or min, knots, mph, also has other functions such as auto power off, low power reminding and more. 1 x Anemometer 1 x Lanyard 1 x Protective Cover 1 x Battery 1 x Accessory 2 x User Manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.