1. Pocket Anemometer Usage: Electric power, steel, petrochemical, offshore fishing industry, various fan manufacturing industries, industries that require ventilation and exhaust systems. 2. Measurement Object: Handheld digital anemometer measures wind speed, wind temperature, and wind power level. 3. Measuring Wind Speed and Temperature: Digital anemometer measures wind speed and temperature simultaneously. 4. Selection Function: Handheld anemometer has maximum wind speed, average wind speed, and current wind speed selection. 5. Unit Selection: Portable anemometer has wind speed unit selection of m/s, km/h, ft/min, knots, mph, and temperature unit selection. 6. Multi Functions: Beaufort scale, LCD backlight display, manual and automatic shutdown, freeze reminder, low battery prompt. 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: 7. Wind Speed Units And Measurement Mode Settings; 8. Temperature Unit Setting; 9. Backlight; 10. Measurement; Wind Temperature Measurement Unit Measuring Range Resolution Accuracy -10 ~ +45 0.2 2 14 ~ 113 0.3 3.6 Wind Speed Measurement Unit Measuring Range Accuracy Resolution Lowest Starting Point Value m/s 0~30 0.1 0.1 0.15% 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 1 x Anemometer With Hanging Rope 1 x Manual