4-IN-1 ANEMOMETER - Professional measurement of wind speed, wind temperature, air volume, and wind chill (will display if below 0C). - Choose between MAX, Average, or Current wind speed readings. - Five units for wind speed: m/s, ft/min, knots, km/hr, mph. - Auto shutdown after 14 minutes of no operation to save battery. - Large backlit LCD display for clear readings; in MAX mode, the data memory is not affected by shutdown. HIGH PRECISION - Wind speed range: 0 to 30 m/s (0 to 65 mph); accuracy ±5%. - Wind temperature range: -10C to 45C / 14F to 113F; accuracy ±2C, ±3.6F; resolution 0.1 m/s. - Uses a high-quality 6-leaf wind wheel to effectively reduce wind resistance and improve measurement accuracy. APPLICATIONS - Suitable for commercial and home use, including drones, HVAC, sailing, shooting, kite flying, and fan wind speed testing. - Helps you plan trips or activities by knowing the weather forecast in advance. - Ideal for pilots, engineers, captains, sailors, and others with an interest in weather.