If not you can buy it at any electronics store or home improvement center.
How to install wired window alarm sensors.
The place where you should install a sensor contact on a door is on the stationary frame.
Most door contacts function using a sensor and a magnet.
The reed switch attaches to the window frame and the magnet to the pane.
Make sure that the wires are nice and secure and won t easily come loose.
But installing a window sensor isn t always the easiest it depends on the make and model of the sensor and what the homeowner is looking for.
Install the switch into a hole drilled into the outer door or window frame making wiring connections first.
The connection wire usually comes with a window sensor kit.
Check the contact that is being used for the magnet spacing gap.
The switch and magnet are two separate parts.
Best options for installation.
The window is in shut status when the magnet is closest to the switch.
Recessed hardwire contacts advantages.
Wired window alarm sensors work with something called a reed switch contact and a magnet.
Ideally you should have no problems installing a sensor onto a single hung window.
Simply install them along the top casing head jamb or along the side casing side jamb.
A dab of caulking in each hole will keep these press fit units from popping out.
Plug the connection wire into a sensor.
Use a screwdriver to connect the existing wires to the new door sensor.
Install the magnet in a hole drilled into the moving frame.
Please see the instruction manual for your sensors if you need further assistance.
Then mount the magnet on the moving part of the door as close to the sensor as possible.
How window door sensors work.
A recessed wired window sensor is installed in the frame of the window and the magnet is installed in the window frame directly across from the contact.
That said you may find an issue depending on your trim choices.
Run the wire to your control panel either along a corner of your wall or through the wall if you are able.
Most door contacts need to be within a half inch of the magnet when the door is closed for proper operation.
Most of the time it s not complicated and there s always the option of choosing a home security company that will do the installation for the homeowner.
Apply the new sensor to the door frame.
A hole must be drilled for the diameter of the recessed contact into the window frame.