This anemometer provides fast measurement for analysis of environment conditions, for industrial and home purposes, such as measuring wind speeds, air blower, temperature of CPU computer fans, and also used for windsurfing, sailing, fishing, drone flying and mountaineering. Features - Color: Assorted color. - Material: Plastic. - Size: 11.20X4.90X2.10cm/4.40X1.93X0.83 inch. - With 6 vanes for you to measure HVAC installation, CFM calculation, duct vents. - Backlight function: User can work under the dim surrounding with your anemometer via back light function. - Manual/auto power off optional, It would auto power off if you don't operate it for 5 minutes. - Compact and lightweight, you can keep it in your pocket, comes with an orange protective case which provides good protection and a wrist strap ensures you hold it even in strong wind. - The product design conforms to the ergonomic design, easy to use. Air velocity specification - Range: 0-30m/s, 0-90km/h, 0-5860ft/min, 0-65mph, 0-55 knots. - Resolution: 0.1m/s, 19ft/min, 0.2 knots, 0.3km/hr, 0.2 mph - : 0.1m/s, 39ft/min, 0.1 knots, 0.3km/hr, 0.2 mph, - Accuracy: ±5%. Air temperature specification - Thermometer: thermometer. - Range: -10 degree centigrade to 45 degree centigrade / 14°F to 113°F. - Resolution: 0.2 degree centigrade, 0.36°F. - Accuracy: ±2 degree centigrade, ±3.6°F - Current consumption: About 3mAh. - Operation humidity: <=90%RH. Package list: 1 x Anemometer