Door sensors detect door position (i.e., open or closed) based on the precise gap between the magnet and the reed switch.

Amazon-owned Ring appeared at the Consumer Electronics Show (CES) 2026 with several announcements focused on everyday safety. It showcased its gadgets and services, such as home sensors, smarter app ...

Ring is kicking off 2026 with some huge announcements, including a new line-up of smart home sensors, switches, monitors and controllers. Designed to protect your home from break-ins, leaks and other ...

Door sensors are some of the simplest smart home devices you can get. Instead of anything fancy like measuring the heat or motion, all they do is detect when their two halves are separated. Yet, that ...