1 WeatherFlow WINDmeter
We bet you never thought about this, but WeatherFlow sure did! Pop this little gadget into your iPhone, download the associated app, and hold it up in the air. The device will then measure wind speed and convert it to air volume if you prefer. You can email the results if you want a log of the data. In addition to being useful for science projects, this accessory is particularly handy if you fly drones – although surfers, hang gliders, and other sports enthusiasts may get plenty of use out of it, too.
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