4-in-1 Portable Anemometer - Professional measurement of wind speed, wind temperature, air volume and wind chill (< 0°C displayed), MAX/Average/Current wind speed selection; 5 wind speed units: m/s, ft/min, knots, km/hr, mph; automatic shut-off after 14 minutes of inactivity; large backlit LCD screen provides 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 -10°C ~45°C/ 14°F ~ 113°F (±2°C, ±3.6°F), resolution 0.1m/s; a high-quality, sensitive 6-axis wind wheelsheets are used to effectively reduce wind resistance and improve measurement accuracy.Multifunctional Anemometer - Ideal for commercial and home use. Use it for drones, HVAC systems, sailing, shooting, kite flying, and fan wind speed testing to know the weather forecast in advance for planning.Travel. Perfect for pilots, engineers, captains, sailors and others interested in weather.Lightweight and practical for outdoor activities - Comes with a protective yellow soft rubber case, which effectively protects the instrument from bumps and drops. Carry it in your pocket or hang it around your neck for easy access.your hands when you are not using it.