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

Home security systems help protect your property, belongings, and family from theft, intrusion, and other safety risks. The ...

Onvis has recently updated its door/window contact sensor, the CT3, to incorporate Thread technology. With this update, the Onvis CT3 contact sensor is now able to seamlessly integrate with HomeKit ...