Part number:Zerodisv249ho3atr Package Dimensions:20 x 16 x 4 cm Specification: Item Type: Pocket Anemometer Product Material: Plastic Weight: Approx. 100g / 3.5oz Temperature Sensor: NTC Negative Temperature Coefficient Resistance Operating Temperature: -10 ~ +45 (14F ~ 113F) Operating Humidity: Less Than 90% RH Storage Temperature: -40 ~ +60 (-40F ~ 140F) Battery: 1 x CR2032 Button Cell (Shipped Without Battery) Measurement Object: Wind Speed, Wind Temperature, And Wind Power Level Product Size: Approx. 104.3x57.8x19.9mm / 4.1x2.3x0.8in Function: 1. Wind Speed Units And Measurement Mode Settings; 2. Temperature Unit Setting; 3. Backlight; 4. Measurement; Wind Temperature Measurement Unit Measuring Range Resolution Accuracy -10 ~ +45 0.2 2 14 ~ 113 0.36 3.6 Wind Speed Measurement Unit Measuring Range Accuracy Resolution Lowest Starting Point Value m/s 0~30 0.1 0.1 5% ft/min 0~5860 19 39 knots 0~55 0.2 0.1 km/h 0~90 0.3 0.3 mph 0~65 0.2 0.2 Packing list: 1 x Anemometer With Hanging Rope 1 x Manual Pocket Anemometer Usage: Electric power, steel, petrochemical, energy saving offshore fishing industry, various fan manufacturing industries, industries that require ventilation and exhaust systems, etc. Measurement Object: Handheld digital anemometer can measure wind speed, wind temperature, and wind power level. Measuring Wind Speed and Temperature: Digital anemometer can simultaneously measuring wind speed and temperature. Selection Function: Handheld anemometer has maximum wind speed, average wind speed and current wind speed selection. Unit Selection: Portable anemometer has five wind speed units selection of m/s, km/h, ft/min, knots, mph, and and temperature unit selection. Pocket Anemometer Usage: Electric power, steel, petrochemical, energy saving offshore fishing industry, various fan manufacturing industries, industries that require ventilation and exhaust systems, etc. Measurement Object: Handheld digital anemometer can measure wind speed, wind temperature, and wind power level. Measuring Wind Speed and Temperature: Digital anemometer can simultaneously measuring wind speed and temperature. Selection Function: Handheld anemometer has maximum wind speed, average wind speed and current wind speed selection. Unit Selection: Portable anemometer has five wind speed units selection of m/s, km/h, ft/min, knots, mph, and and temperature unit selection.