This meter is a portable and professional wind speed measuring instrument with large screen LCD display and backlights, multi-unit switching functions including wind speed: 0.80~30.0m/s and wind speed accuracy: 0.01m/sThe Tinor digital anemometer providesfast measurement for analysis of critical environmental conditions.With LCD display, adjustment of el flow area, Max/Min, auto power off, backlight and low battery indicatorThis digital anemometer is an ideal instrument for windsurfing, sailing, fishing,kite flying- flying and mountaineering, etc. And it can also be used for industrial and household purposes, such as measuring the wind speed of CPU computer fans, air conditioners, air blowers, etc.Wind Speed and air volume in an LCD display. DigitalAnemometer Handheld measures wind speed in 6 units: m/s, ft/s, ft/m, km/h, mile/h, Knots