Feature 1Smart 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. 2High Accuracy: Able to test the maximum value, minimum value as well as calculating the average value, the air flow CFM tester has higher accuracy for working. 3Broad 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. 4Clear 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. 5Easy Carrying: Comes with a compact size and a light weight as well, the wind speed sensor anemometer is very convenient to carry for indoor and outdoor uses.Item Type: Digital AnemometerMaterial: ABSBattery: 1 x 9V battery, shipped without battery. Function: For wind speed and temperature measurement. Temperature Sensor: NTC negative temperature coefficient resistance. Operating Temperature: -10~45, that is, 14~113. Operating Humidity: 90% RHStorage Temperature: -10~50 .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Digital Anemometer1 x Storage Bag1 x User Manual