So FYI
It seems that the S1 pro is using a old API. I expected it to use the same API as the X10 but it doesn’t
I already asked Eufy why they made this decision.
So if you have a S1 and you can’t not add it to Homey, please let me know or share the device with me so i can investigate
Edit: the S1 is working in Homey, but some people experience that they cant add it