Shelly BLU WS4 + Gira/Merten Adapter

The Gira/Merten adapter clicked right into my existing wall frame with zero fuss, which was my biggest worry before buying. Now I just walk into the hallway and the lights come on automatically every time—setup took less than ten minutes and it's been rock solid since.

The Gira frame alignment is spot-on—no gaps or wobble when I snap it in. Bluetooth pairing took under a minute, and now the motion sensor fires my hallway lights exactly when I walk past, no delay I can notice. Set it up before bed, and it just works.

The adapter fits the Gira frame perfectly, and pairing the motion sensor with my automation app took under two minutes. It's been detecting movement reliably every single time for the past week, which is exactly the hands-free convenience I was hoping for.