Feature: 1. Built‑in Bluetooth, the meter can be connected to a mobile phone and controlled by APP. 2. The anemometer is lightweight and portable and can measure wind speed and temperature. 3. Unit conversion: temperature units ℃ and ℉, wind speed units m/s, km/h, ft/min, and mph. 4. LCD screen with backlight, with data retention function, easy to read the measurement results. 5. Simple button design, easy to operate. It feels comfortable and easy to hold. Specification: Item Type: Bluetooth Anemometer Material: ABS Color: As shown in the picture Size: Approx.188x36x56mm / 7.40x1.42x2.20in Model WT82B Wind speed range Resolution Threshold Accuracy 0-30.0m/s 0.1 0.3 ±(5%+0.1) 0-5860Ft/min 19 60 ±(5%+20) 0-55.0knots 0.1 0.6 ±(5%+0.2) 0-90.0km/h 0.3 1 ±(5%+0.4) 0-65Mph 0.2 0.7 ±(5%+0.2) Wind speed temperature range -10~45.0°C; 14.0~113.0°F Accuracy ±2°C/±3.6°F Working environment -10~50°C <90%RH Storage environment -40~60°C <90%RH Power supply 3 x 1.5V AAA(Not included) Data storage 999 groups Automatic shutdown Yes Backlight selection Yes Battery indicator Yes Maximum/Ave display Yes Data storage Yes Bluetooth function Yes Unit switchable Yes . Package List: 1 x Anemometer(Battery Not Included)1 x Instruction Manual Note: 1. Please allow 1‑2in error due to manual measurement. Thanks for your understanding.2. 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.