Features1Pocket Anemometer Usage: Electric power, steel, petrochemical, energy saving offshore fishing industry, various fan manufacturing industries, industries that require ventilation and exhaust systems, etc. 2Measurement Object: Handheld digital anemometer can measure wind speed, wind temperature, and wind power level. 3Measuring Wind Speed and Temperature: Digital anemometer can simultaneously measuring wind speed and temperature. 4Selection Function: Handheld anemometer has maximum wind speed, average wind speed and current wind speed selection. 5Unit Selection: Portable anemometer has five wind speed units selection of m/s, km/h, ft/min, knots, mph, and and temperature unit selection. 6Multi Functions: Beaufort scale, LCD backlight display, Manual and automatic shutdown, freeze reminder, low battery prompt.SpecificationItem Type: Pocket Anemometer Product Material: PlasticWeight: Approx. 100g / 3.5ozTemperature Sensor: NTC Negative Temperature Coefficient ResistanceOperating Temperature: -10 ~ +45 (14 DegreeF ~ 113 DegreeF)Operating Humidity: Less Than 90% RHStorage Temperature: -40 ~ +60 (-40 DegreeF ~ 140 DegreeF)Battery: 1 x CR2032 Button Cell (Shipped Without Battery)Measurement Object: Wind Speed, Wind Temperature, And Wind Power LevelProduct Size: Approx. 104.3x57.8x19.9mm / 4.1x2.3x0.8inFunction:1. Wind Speed Units And Measurement Mode Settings;2. Temperature Unit Setting;3. Backlight;4. Measurement;Wind Temperature MeasurementUnitMeasuring RangeResolutionAccuracy-10 ~ +450.2214 ~ 1130.363.6Wind Speed MeasurementUnitMeasuring RangeAccuracyResolution Lowest Starting Point Valuem/s0~300.10.15%ft/min0~58601939knots0~550.20.1km/h0~900.30.3mph0~650.20.2Package List1 x Anemometer With Hanging Rope 1 x Manual