WEATHER FLOW anemometer for Smartphones

This small but very precise anemometer turns your devices into an information detector for everyday navigation. It is compatible with iPhone, iPad, iPod, and Android smatphones/tablets. iOS6.0 or Android 4.3 operating systems required. Just plug it into the audio socket. ± 0,5% or 0.1 m/s max error. 0.1 to 56 m/s range. It reads in meters/second, miles/hour, knots, and Beaufort scale. It saves wind speed (average and max) and direction. Shock-proof rubber case.