Description Mini LCD Digital Anemometer Wind Speed Air Velocity Temperature Measuring with BacklightThis anemometer is portable and useful which can measuring wind speed and temperature, it also can show you wind scale and indicate windchill. LCD display with backlight, it is easy to read value at night.Features:Measure wind speed and temperature.Large easy-to-read LCD display with backlight.Wind speed in Beaufort wind scale bar graph.Wind chill indication.Data hold function.High precision pressure sensor.Quick response, external thermistor.Auto/manual power off.Temperature display in /F.Wind speed range: 0-30m/sWind temperature range: -10 - 45 (14-113F)Current/max/average wind speed reading.Wind speed unit: m/s, Km/h, ft/min, Knots, mph.Powered by a 3V CR2032 battery.Specifications:Air Velocity:Range: 0 - 30m/s, 0 - 90km/h, 0 - 5860ft/min, 0 - 65mph, 0 - 55KnotsResolution: 0.1m/s, 0.3km/h, 19ft/min, 0.2mph, 0.2KnotsThreshold: 0.1m/s, 0.3km/h, 39ft/min, 0.2mph, 0.1KnotsAccuracy: +/- 5%Air Temperature:Range: -10 - 45, 14 - 113FResolution: 0.2, 0.36FAccuracy: 2, 3.6FPower Supply: 1 * 3V CR2032 battery (Not Included)Thermometer: NTC ThermometerOperating Temperature: -10~45 (14~113F)Operating Humidity: less than or equal to 90%RHStorage Temperature: -40~60, -40~140FCurrent Consumption: About 3mAItem Size: 105 * 40 * 18mmItem weight: 50gPackage List:1 * Digital Anemometer1 * Lanyard1 * User Manual