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ZephyrFree Wind Speed Meter


Zephyrus Basic works as an anemometer, just using your smartphone microphone! This free edition has a reduced size ideal for old cell phones.If you have a new phone model (>2012), try our last Zephyrus Lite edition (free)!
Dynamic wind speed measuring mode with real time chart, wind direction display and calibration.
The typical wind range is 1-16 m/s (max 20 m/s): the full scale is limited by the internal mic maximum SPL.