Feature:1. Equipped with high-definition LCD display, with backlight function, it can display the wind speed measurement results directly.2. Built in six-leaf blades, low friction bearing technology, more sensitive measurement, more accurate data.3. With lanyard, it can prevent loss or falling. It is small in size, compact in structure and suitable for carrying.4. Mini portable anemometer, shell made of high quality ABS material, durable and wear-resistant, long service life.5. With soft rubber protective cover and anti-skid texture on the side, it can better protect the instrument.6. It can be used to measure the wind speed of electric fan, air conditioner and street.Specification:Condition: 100% Brand NewItem Type: Wind Speed MeterMaterial: ABSWeight: Approx. 102g / 3.6ozPower Supply: 1 x CR2023 Battery (Battery Not Included)Product ModelGM816Wind Speed Range0.3 - 30m/sWind Speed Error±5%Resolution0.1m / STemperature Range-10 - 45 °CTemperature Error±2 °CWind RatingSupportMaximumSupportAverage ValueSupportWind Speed UnitM/S, Km/H, Ft/Min, Knots, MphTemperature SensorNTC Negative Temperature Coefficient Resistance° C / ° F ConversionSupportHigh Definition Backlight SupportAutomatic Shut-Down14 Minutes Automatic Shutdown without OperationProduct PowerCR2032 3.0V (Battery Not Included).Package List:1 x Wind Speed Meter (Battery Not Included)1 x Instruction Manual1 x Hanging RopeNote:Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.