Features:This anemometer is very compact and lightweight.It is an ideal tool for windsurfing and kite flying.You can also use it for industrial and home use, such as measuring the speeds and temperature of a CPU computer fan.Six impeller design more efficient and accurate measurement of wind status.Thermal probe, non-slip design gives you a better experience.LCD display allows you to clearly observe the measurement results.5C / F temperature unit selection, wind range / unit available.Specification:Condition: Brand NewColor: Shown as PictureMaterial: ABSMeasurement Items: Air CirculateRate, Air TemperatureWind Speeds Range: 0~30m/s, 0~90km/h, 0~5860ft/min, 0-55knotsf 0-65mphAccuracy Of Air CirculateRate: 5%Temperature Range: -10-45 C (14-113t)Temperature Accuracy: 2c (3.6t)Air Circulate Rate Resolution: 0.1m/s, 0.2cBattery: CR2032(Included)Thermometer: Ntc ThermometerWorking Temperature: -10-45c (14-113t)Working Humidity: Less Than 90% RhStorage Temperature: -40~+60 (-40f~140f)Current Consumption: About 3 mAPackage List:1 x Anemometer1 x Manual