This convenient handheld meter will measure wind speed and other weather parameters with field selectable units including: knots (KT) meters per second (m/s) kilometers per hour (km/H) Miles per hour (mph) feet per minute (FPM) beaufort force("b") Kestrel 2000 - pocket wind meter features current wind speed max wind gust average wind speed KL008102 - pocket thermo wind meter Plus features wind speed temperature wind chill a number of accessories are available including a portable vane mount and a tripod for longer readings, and a replacement impeller. Measure air velocity and other weather parameters accurately and easily wide range of field selectable units. Large easy-to-read display. Waterproof IP67-rated casing