1,Compact Design 2,Display Air Velocity and Temperature and Windchill 3,Wind Speed Unit Selectable 4, ... Beaufort scale displa Measurement itemsAir velocity&Air temperature Measurement rangeAir velocity:0~45m/s, 0~140km/hr, 0~8800Ft ... *30.7CMStandard Carton Gross Weight 17.5kg Digital Anemometer (Air velocity:0-45m/s,Air Temp:0~45C) (SV1232)