Same advice I just posted here:
https://community.windy.com/topic/10726/quero-por-online-a-minha-estação/4
Your Ambient Weather WS-2902(A) is a Fine Offset clone. You should buy the Ecowitt GW1000 (915 Mhz for Ambient compatibility) to add to your hardware setup and then follow the software choices mentioned in the link above.