Simon XT - Installing A Recessed Door Sensor

The Interlogix Recessed Door Sensor is a magnetic contact sensor that provides concealed protection for doors.


Locate an area on your door or window to install the sensor and magnet. The image below will show the recommended placement.

Note: If you aren’t able to place the magnet in the frame or the sensor in the door, then you can reverse the mounting. This means you can place the magnet in the door and the sensor in the frame.


Drill a hole for the sensor 3/4” wide and 2.5” deep. Please take care when drilling to ensure proper fit. Then insert the sensor in the hole.


Drill a hole for the magnet 3/4” wide and 0.75” deep. Then insert the magnet in the hole. Be sure the magnet aligns with the sensor when the door closes.


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