KKmoon Mini Anemometer Wind Speed Air Velocity Temperature Measurement Beaufort Scale Display Auto/manual power off. Measure wind speed & temperature. LCD display with backlight, easy for reading. Wind speed range: 0-30m/s; temperature range: -10-45C/14-113F. Current/Max./average wind speed reading to choose. 5 wind speed units for selection: m/s, km/h, ft/min, knots, mph.