Get one without cups. The netatmo or ecowitt ones are truly superb for their cost.
https://www.ecowitt.com/shop/goodsDetail/245#
I have the netatmo anemometer running in the wettest lousiest UV-heavy climate for plastics possible for 8(!) years already, and yes I did fix some openings in it with sillicone kit after about 5 years, and now feed it with solar after replacing batteries for 6 years, but it still works great. In fact, it surpassed many other more expensive brands' anemometers. It survived Eunice last year.