Product DescriptionThis Bt-866A Digital Anemometer Is Ideal For Outdoor Activities Such As Windsurfing, Windsurfing, And Windsurfing. Veil; Kite Flying, Aeromodelling And Uav, Sailing, Surfing, Fishing, Hiking, Shooting, Walking, Etc.Available Usb Port: Compare To Our 866B Anemometer, This New 866A-Black Anemometer Provides A More Convenient Usb Port.Three Functions: Wind Speed, Temperature And Wind Chill On One Screen Lcd. Measure Speed In 5 Units: M/S, Km/H, Feet/Minute, Knots, Mph.By The Built-In Temperature Controller To Adjust The Temperature / . Save And Recall Max/Min/Average/Current Function. Low Battery Indication. With A Screw Hole, Can Be Connected A Lanyard.Features And Specifications:Wind Speed: 0.3~40M/STemperature, Temp-10~60 14 ~ 140 Wind Speed Accuracy: Plusmn; 0.1DgtsResolution: 0.1M/SWind Flow Range: 0~999900M3/Min Selection Of Wind Speed Unit Wind Speed: M/S, Ft/Min, Knots, Km/H, MphDew Point YesReturn Light YesLow Battery Indication YesManual/Auto Power Off YesMax/Min/Average/Current Yes/ YesUsb Port YesReal Time Measure YesBattery Type: 2*1.5V Aaa Battery (Included)Package Included:1*Bt-866ADigital Anemometer2*1.5V Aaa Battery1 * Lanyard1 * Protective Case1 * User Manual1 * Usb Data Cable 1 * Disc