Feature: 1. 180° Rotating Fan: Handheld anemometer has a 180° rotating fan, according to the direction of the wind, realtime adjustment of the fan measurement of different scenarios. 2. Five Measurement Modes: Temperature and humidity measurement wind meter has five measurement modes, switch modes according to different wind speed measurement needs. 3. High Sensitivity: Anemometer wind meter has highly sensitive wind blades and sensors, rapid response time and more accurate data collection. 4. Shockproof Rubber Shell: Our handheld anemometer shell is made of rubber shell material, which is comfortable to the touch, drop resistant and wear resistant, and has strong impact resistance. 5. Widely Used: Our wind meter can be used in wind energy, meteorology, industry, navigation, environmental protection, highway, airport, fan manufacturing, ventilation engineering, etc. Specification: Item Type: Handheld Anemometer Material: ABS, Rubber Working Height: 2000m Measurement Method: Fan Sensor Display Screen: LCD Maximum Display: 9999 Sampling Rate: About 0.4 Seconds Automatic Shutdown: About 10 Minutes Operating Current: 5mA Power Supply: Requires AAA Batteries x 2 (Shipped Without Batteries) Operating Temperature: 0-50℃ Working Humidity: 0-85%RH Storage Temperature: -10-60℃ Storage Humidity: 0-80%RH. Package List: 1 x Anemometer1 x Cross Screwdriver1 x Instruction Manual