Anemometer wind gauge

… on my recent post, guess I didn´t make miself clear.

What I am locking for is a anemometer ( wind gauge) similar like the one on the picture .
It´s simple that propeller driven by the air flow.

I am sure many of forum members do have such a divice running. Is there any chance to get information what type of hardware is needed ? (f.i. propeller is triggering a read-switch every revolution)
How to implement it on ESP8266 ?
wet_station

This anemometer can be read with any kind of MCU to make your own project: