The same I think;
https://www.ebay.co.uk/itm/12-24V-Wind-S...2574084602?
They also do pulse versions, and wind vanes etc; (numerous sellers but, I expect, one manufacturer).
https://www.ebay.co.uk/itm/One-Pair-Wind...3135820310?
https://www.ebay.co.uk/itm/Wind-Speed-Se...2413643229?
https://www.ebay.co.uk/itm/12-24V-Wind-S...2574084602?
They also do pulse versions, and wind vanes etc; (numerous sellers but, I expect, one manufacturer).
https://www.ebay.co.uk/itm/One-Pair-Wind...3135820310?
https://www.ebay.co.uk/itm/Wind-Speed-Se...2413643229?

