Features: 1.This measuring instrument with large?screen LCD and backlight, multi?unit switching functions. 2.This meter has the functions of data holding, low battery indicator, maximum, minimum, etc. 3.Large range measurement, suitable for measurement in a variety of environments, such as outdoors, fishing, Sailing, etc 4.High accuracy wind speed measurement, ABS material, durable and easy to use. 5.This digital Anemometer is designed to be portable, delicate, compact and easy to carry. Item Type: Anemometer Model: MT62 Material: ABS Battery: 1 x 6F22 9V (Battery Not Included) Application: Wind speed, air velocity measurement Wind Speed Measurement UnitMeasuring RangeResolutionCritical ValueAccuracy m/s0~300.010.35%0.1 ft/min0~58601.968605%20 knot0~550.0190.65%0.2 km/h0~900.03615%0.4 mph0~650.0220.75%0.2 Wind Temperature Measurement UnitMeasuring RangeResolutionAccuracy -10~+450.12 H14H~113H0.23.6H Temperature SensorNegative Temperature Coefficient Operating Temperature -10~+45(14H~113H) Operating HumidityNo more than 90%RH Storage Temperature -10~+50(14H~122H) Power ConsumptionAbout 6mA Wind Flow Range CMM: 0-999900m^3/min CFM: 0-999900ft^3/min UnitRangeResolutionArea CFM(FT^3/MIN)0-9999000.001-1000.001-9999 CMM(M^3/MIN)0-9999000.001-1000.001-9999 1 x Anemometer(Battery Not Included) 1 x Screwdriver 1 x Manual 1 x Carry Bag