Vaavud Sleipnir Anemometer

Vaavud Sleipnir Anemometer for Smartphone, added directly to the 3.5 mm jack. No batteries required when communicating with a sensor field surrounding the phone. A free app is downloaded to your phone, then you just have to start. The measuring units can be easily shifted to Kmh, mph, KTS and Bft. Sleipnir measure wind and wind direction. An integrated sensor makes 40 thousand measurements per second, and detects the slightest variation in wind speed. The signal therefore makes it possible to even feel the wind direction. App: Vaavud - Size: 22x45x83 mm - Weight: 14 grams Sleipnir compatible with: (October 2015): iPhone® 4, 4, 5, 5C, 5S, 6, 6Plus, iPad® 2, 3, 4, & iPad® mini Air On iOS7 and higher. Android Samsung Galaxy® S3, S4, S5, HTC® One, Google® Nexus 4, 5 and others, Android 4.0 and higher.