Features ABS Material: Stable and reliable material ensures long lasting performance of the anemometer, suitable for outdoor and industrial environments. Detachable Extensible Wind Speed Sensor: Separated design allows easy reading in hard to arrive places, with the wind speed sensor extendable up to 2.3 meters for flexible usage. Temperature and Humidity: Measure wind temperature in ℃ and ℉(0℃ to 45℃,32℉ to 113℉), providing comprehensive wind information for various applications. Rechargeable Battery: Digital anemometer has a built in 3.7V polymer battery with a capacity of 1000mAh for continuous and convenient power supply. Portable Anemometer: CFM display with 5 units to accurately measure wind speed, including m/s (0 to 30), km/h (0 to 108), ft/min (0 to 5904), knots (0 to 58.3), mph (0 to 67), and CFM air flow rate. Spec: Item Type: Digital Anemometer Material: ABS Battery: 1 x 3.7V Polymer Battery Battery Capacity: 1000mAh (Shipped with Built in Battery) Air Flow (CFM(FT³/MIN)): Range: 0 to 999900 Accuracy: 0.001 to 100 Area: 0.001 to 9999FT² Air Flow (CMM(M³/MIN)): Range: 0 to 999900 Accuracy: 0.001 to 100 Area: 0.001 to 9999M² Wind Speed: 0 to 30 m/s, 0 to 5904 ft/min, 0 to 58.3 knots, 0 to 108 km/h, 0 to 67 mph Wind Temperature: 0 to 45℃, 32 to 113℉ Package List: 1 x Anemometer 1 x Extension Pole 1 x USB Cable 1 x User Manual 1 x Storage Box Package List 1 x Anemometer 1 x Extension Pole 1 x USB Cable 1 x User Manual 1 x Storage Box