4 in 1 Portable Anemometer - Professional measurement of wind speed, wind temperature, air volume and wind chill0C is displayed, MAX/wind speed selection Average/Current; 5 wind speed units m/s, ft/min, knots, km/hr, mph; automatic shutdown after 14 minutes of inactivity; the large backlit LCD screen presents clear readings, in MAX mode, the data memory function is not affected by shutdown. Accurate digital anemometer - The anemometer measures the wind speed in the range of 0~30m/s (0~65 mph) (accuracy 5%), wind temperature -10C ~45C/ 14F ~ 113F (2C, 3.6 F), resolution 0.1m/s; A high-quality sensitive 6-leaf wind wheel is used to effectively reduce wind resistance and improve measurement accuracy. Multifunctional Portable Anemometer - Ideal for commercial and domestic use. Like drones, HVAC, sailing, shooting, kite flying and fan wind speed testing, know the weather forecast in advance to plan trips. Perfect for pilots, engineers, captains, sailors and others interested in the weather. Lightweight and convenient portable anemometer for outdoor activities - Comes with a yellow soft rubber protective case, the Protective case can well protect the instrument from bumps or drops. Pocket or hang around your neck to free your hands when not in use.