Shelly BLU Door/Window White

Set it up on my back door in under five minutes, and the luminosity reading is a nice bonus for catching when the porch light gets left on. The tilt angle data came in handy too, since I can tell if the window’s cracked an inch without walking over. Works flawlessly so far.

Tilt angle reporting is what sold me—now I can tell if the bathroom window's been left cracked open even from another room. The luminosity reading is a nice bonus for tracking when the sun hits that side of the house. Took me all of five minutes to pair it with my phone and the battery indicator giv

Set this up on my bedroom window in about five minutes, and the luminosity reading is a nice bonus—it doubles as a rough daylight sensor. The tilt angle data is way more precise than I expected for something this small, and it's been rock-solid reliable for two weeks now.