Xiaomi Mijia Smart Sensor Set The Xiaomi Mijia Smart Sensor set comprises one Mi Control Hub, two Mi motion sensor, two Mi window and door sensor, and one Mi wireless switch.

In the first episode of our new video series Homehackers, we go over smart home hub options and show you how to set up a water sensor.

These tiny devices are smart-home helpers. They detect and alert you about motion, temperature, or open or closed doors and windows — and can tell other smart devices to act.

Smart home sensors don't just help keep you safe -- with the right tricks they can spot pest activity and entrances, too.

A Sensor That Could Soon Make Homes Scary-Smart University researchers create a simple device that plugs into an electrical outlet and connects everything in the room.