Feature: 1. Pocket Anemometer Usage: Electric power, steel, petrochemical, energy saving offshore fishing industry, various fan manufacturing industries, industries that require ventilation and exhaust systems, etc. 2. Measurement Object: Handheld digital anemometer can measure wind speed, wind temperature, and wind power level. 3. Measuring Wind Speed and Temperature: Digital anemometer can simultaneously measuring wind speed and temperature. 4. Selection Function: Handheld anemometer has maximum wind speed, average wind speed and current wind speed selection. 5. Unit Selection: Portable anemometer has five wind speed units selection of m/s, km/h, ft/min, knots, mph, and ℃ and ℉ temperature unit selection. 6. Multi Functions: Beaufort scale, LCD backlight display, Manual and automatic shutdown, freeze reminder, low battery prompt. Specification: Item Type: Pocket Anemometer Product Material: Plastic Weight: Approx. 100g / 3.5oz Temperature Sensor: NTC Negative Temperature Coefficient Resistance Operating Temperature: -10℃ ~ +45℃ (14°F ~ 113°F) Operating Humidity: Less Than 90% RH Storage Temperature: -40℃ ~ +60℃ (-40°F ~ 140°F) 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 . Package List: 1 x Anemometer With Hanging Rope 1 x Manual