They are placed on doors or windows.
Ring contact sensor door molding.
Aeotec recessed door sensor gen5 invisible z wave plus security and open close sensor battery powered.
When the alarm system is armed they will trigger an alarm as soon as their magnetic contact is broken by the door or window opening.
While this is the easiest.
Simply install the sensors and the magnet along the top casing or inside jamb of the door and make sure their grooves are aligned with one another when the door is closed.
1 best options for installation.
They are placed on doors or windows.
Panel recommended number of contact sensors.
The basic flat panel door is the easiest type of door to install sensors on.