SwitchBot 毫米波存在感測器

I was skeptical about whether it would detect me sitting still, but the radar caught my breathing movements from across the room the first time I tested it. Set up took less than ten minutes, and the light sensor means it doesn't false-trigger at noon like my old one did.

It caught my roommate sitting still reading for over an hour, which no motion sensor I’ve had before could do. I love that it combines radar with the light sensor, so the hallway light stays on exactly when it should and not a second longer.

The ceiling mount was a game-changer for me—it finally catches me sitting still at my desk without false triggers from the hallway. The light-sensing feature is a nice touch too, dimming the detection range at night so it doesn’t wake me up walking past the bedroom.