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. 1 x Anemometer With Hanging Rope 1 x Manual Item Type: Pocket Anemometer Product Material: PlasticWeight: Approx. 100g / 3.5ozTemperature Sensor: NTC Negative Temperature Coefficient ResistanceOperating Temperature: -10℃ ~ +45℃ (14°F ~ 113°F)Operating Humidity: Less Than 90% RHStorage 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 LevelProduct Size: Approx. 104.3x 57.8x 19.9mm / 4.1x 2.3x 0.8inFunction: 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