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

The Chamberlain myQ Smart Garage Door Controller is our longtime top pick in its category, and now Vivint Smart Home has partnered with Chamberlain to offer the product as part of Vivint’s ...

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 ...