Shelly BLU Door/WIndow Black

The tilt angle reporting is a nice touch—it lets me know if the window is just cracked or fully open, not just a binary open/closed. Pairing was painless and it’s been rock-solid for a week now. Also pleasantly surprised how small it is, blends right into the frame.

Took me a minute to get it paired with my phone, but once it was, the luminosity reading caught me off guard—I can now tell when the garage door’s cracked open just by the light spike in the app. Battery life seems solid so far, and the tilt measurement makes it way more useful than a plain open/clo

The tilt angle readout is a nice touch—I stuck it on my garage side door and now I can see exactly how far it's been left ajar, not just open or shut. The luminosity reading even caught the hallway light bleeding through at night, which is more detail than I expected from such a tiny sensor.