YF-876 Handheld Anemometer Specifications: Wind speed range: 1.5-93 mph, 2.5-150 km/h, 1.3-81 knots, 0.7 to42 m/s< /li> Wind speed accuracy: +/-4%Resolution: 0.1 m/sStorage temperature: -30-70< li>Weight: 100 gDimensions: 2.4 x 1.1 x 5.6 inches< p> Anemometer YF-876 Features: Built-in compass so you can also determine the wind direction.The precise anemometer reacts to low wind speeds with its four horizontally rotating wind envelopes. Easy to read measurements of maximum/average/current wind speed. Record sheet with 12 Beaufort scales;Switchable to km/h, mph, m/s or knots. Manual/automatic shutdown after 8 days, low battery consumption to save energy, long standby time. Handy portable anemometer with LCD display for various outdoor activities such as: sailing, drone flying, shooting, fishing, hiking, etc. Also ideal for measuring wind speed in households orIndustries such asE.g. HVAC dust collection systems, air conditioning systems, exhaust fans, etc. Package: 1 x anemometer 1 x3V CR2032 battery