Features 5 kinds of airspeed unit conversion: m/s, ft/m, mph, km/h, Knots; 2 temperature unit conversion: ℃/℉. The overall wind speed display of MIN/Max/AVG. 12-level wind speed indication - no complicated numerical to vane conversion required. Light weight, small size, easy to use, with backlight for easy reading in the dark. Perfect tool for measuring wind speed at home, office, car, air conditioner, exhaust fan, sailboat, sailing, etc. Description: This digital anemometer is used to measure air speed and air temperature. LCD screen displays the measuring value at MIN/Max/AVG. It is widely used to measure air speed for home, office, car, air condition, exhaust fan, sailboat, navigation, etc.   Features: -5 kinds of airspeed unit conversion: m/s, ft/m, mph, km/h, Knots; 2 temperature unit conversion: ℃/℉. -The overall wind speed display of MIN/Max/AVG. -12-level wind speed indication - no complicated numerical to vane conversion required. -Light weight, small size, easy to use, with backlight for easy reading in the dark. -Perfect tool for measuring wind speed at home, office, car, air conditioner, exhaust fan, sailboat, sailing, etc. Specifications: Air Speed: Range: 0-45 m/s, 0-140 km/h, 0-8800 ft/min, 0-100 mph, 0-88 Knots Resolution: 0.1 m/s, 0.3 km/h, 19 ft/min, 0.2 mph, 0.2 Knots Threshold: 0./s, 1 km/h, 60 ft/min, 0.7 mph, 0.6 Knots. Air Temperature: Range : 0-45℃, 32°F-113℉ Resolution: 0.2℃, 0.36℉ Accuracy: ±2℃, ±3.6℉ Operating Temperature: -10°C-50℃ / 14-122℉ Operating Humidity: 40% RH - 85% RH Storage Temperature: -20-60℃ / -4-140°℉ Input Current: A Power Supply: 1 x 9V 6F22 Battery ( NOT included ) Product Size: 145*72*35mm / 5.85*2.83*1.38in Weight: Approx. 888g   Package List