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