Precise Wind Meter Anemometers measure wind speed in 5 units: m/s, km/h, ft/min, knots, mph, with 12 beaufort scales, and detect air temperature (14 F and 113 F). Multi-Function High-precision pressure sensor; air speed; measurement of wind speed and temperature; Temperature selection C / F; With 6 sensitive vanes for you to measure HVAC installation, CFM calculation, duct vents. Backlight function User can work in dark environment with your anemometer via backlight function. Manual/auto power off optional, it would power off automatically if you don't use for 5 minutes. Mini size and portable design Compact and lightweight, you can keep it in pocket, comes with a carrying case orange protection that offers good protection and a wrist strap ensures you can hold it even in strong winds. Various applications This anemometer provides a quick measurement for analyzing environmental conditions, ideal for industrial and domestic applications, such as as the measurement of wind speed, fan, computer CPU fan temperature, and also used for windsurfing, sailing, fishing, drone flight and Mountaineering. This Anemometer provides a quick measurement for analyzing environmental conditions. Ideal for industrial and household applications, such as measuring wind speed, air blower, computer CPU fan temperature, and also for windsurfing, sailing, fishing, drone flight and mountaineering. Digital anemometer Functions: 1. Airflow velocity and temperature measurement 2. Max/average/current airspeed measurement 3. C/F temperature unit selection 4. Five units of air speed: M/s, Km/h, ft/min, Knots, Mph 5. Indication of wind chill (when temperature is below 0C) 6. Manual/automatic shutdown (without any operation in 14 minutes and device will shut down automatically) 7. Low Battery Indicator Digital Anemometer Specification: Air Velocity Specification: Range: 0-30 M/S, 0-5860 FT/MIN, 0-55 knots, 0-90 KM/h, 0-65Mph Resolution: 0.1 m/s, 19 ft/min, 0.2 knots, 0.3 km/h, 0.2 mph Threshold: 0.1 m/s, 39 ft/min, 0.1 knots, 0.3 km/h, 0.2 mph, Accuracy: +/- 5%. Air temperature specification: Thermometer: NTC thermometer. Range: Between -10C and 45C / 14F and 113F Resolution: 0.2C, 0.36F. Accuracy: 2C, 3.6F Digital Anemometer Various Applications: This anemometer temperature gauge is suitable for home, hobbyist, weather or professionals to accurately measure air speed and air temperature. For windsurfing, kite flying, sailing, surfing, fishing, shooting. For measuring home wind speed, fan, computer CPU fan temperature. For industries, such as electrical industry, steel industry, petrification industry, manufacturing, etc. How to install the battery? 1.Remove the rubber cover. 2.Open the battery cover with a screwdriver. 3.Install the battery. Package Included: 1*Anemometer