It is possible to measure the wind speed of 2 to 40 meters per second at anytime anywhere and the direction of the wind within plus or minus 4% by inserting "feathers" in the earphone jack of the ...
An anemometer that can measure wind speed and wind direction easily anytime, anywhere, simply by inserting it into the earphone jack of a smartphone or tabletVaavud wind meter V 2.0"is. The state of ...
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