Features 1、With backlit LCD display, the results can be visually and clearly displayed, and can work normally at night. 2、The wind speed unit can be switched, m / s, kts, km / h, mph, ft / min, and the operation is simple and convenient. 3、High accuracy, fast response, accurate measurement results, stable performance, long-term use. 4、With low power indication and automatic shutdown function, low power consumption, support maximum / minimum / data retention function. 5、Hand held design, small size, light weight, easy to carry, can be used to measure wind speed and temperature. 6、This digital anemometer is an ideal choice for meteorologists or professionals to accurately measure wind speed. Specification Condition: 100% Brand New Item Type: Anemometer Material: ABS Wind Speed Units: m / s, kts, km / h, mph, ft / min Airspeed Range: 0.8-30.0 m / s, 1.4-108.0 km / h, 0.8-58.3 kts, 0.9-67.2 mph, 78-5900 ft / min Airspeed Resolution: 0.1 m / s, 0.1 km / h, 0.1 kts, 0.1 mph, 10 ft / min Airspeed Accuracy: ± (5% + 0.5 m / s), ± (5% + 5.0 km / h), ± (5% + 0.5 mph), ± (5% + 0.5 mph), ± (5% + 50 mph) minutes) Temperature Range: -1060 °C / 14-140 °C Temperature Resolution: 0.1 °C / 0.2 °C Temperature Accuracy: ± (2.0% + 2) °C / ± (4.0% + 4) °C Automatic Shutdown: 10 minutes Power Consumption: About 8.3 mA DC Working Conditions: 0-40 °C / 32-104 °C, Relative Humidity 45% -80% Storage: -20 - 60 °C / -4 - 140 °C, Relative Humidity 45% -80% Power: 1 x 9V 6F22 Battery (Battery Not Included) Weight: Approx. 203g / 7.2oz Product Size: 19.2x5x3.4cm / 7.6x2.0x1.3in Package List 1 x Anemometer (Battery Not Included) 1 x Instruction Manual 1 x Portable Case