This article explains an upgraded smart solid-state AC switch system that uses microwave Doppler radar instead of traditional PIR sensors.

Off-the-shelf motion controllers are a convenient and economical solution for most automation needs. But when applications demand more than the average off-the-shelf (OTS) controller can provide — ...

We may receive a commission on purchases made from links. I've been annoyed by a ductless AC and heating unit in the back of my house ever since I first moved in. It's a constant source of frustration ...