General Description 4-in-1 portable anemometer, ideal for professional measurements of wind speed, wind temperature, air volume, and wind chill (displays values below 0°C). It offers a selection of wind speeds: MAX, Average, and Current, with 5 available units of measurement (m/s, ft/min, knots, km/h, mph). The backlit LCD screen makes it easy to read data, and the device automatically shuts off after 14 minutes of inactivity. Technical Specifications Wind Speed Range: 0~30 m/s (0~65 mph) Accuracy: ±5% Temperature Range: -10°C ~ 45°C (14°F ~ 113°F) Temperature Accuracy: ±2°C (±3.6°F) Speed Resolution: 0.1 m/s; 19 ft/min; 0.2 knots; 0.3 km/h; 0.2 mph Temperature Resolution: 0.2°C; 0.36°F High-quality 6-blade impeller for increased accuracy Compatibility and Accessories Comes with: Anemometer *1 CR2032 Battery *1 User Manual *1 Lanyard *1 Installation No installation required. The anemometer is ready to use right out of the box. Usage Ideal for both commercial and home use, this anemometer is perfect for various applications, such as: Drone wind speed testing HVAC system monitoring Sailing Shooting and kite flying Weather forecasting for travel planning Other Information Lightweight and comfortable design, comes with a soft rubber protective case for easy and safe transport. Hang it around your neck or store it in your pocket when not in use.