The second best location for alarm wiring is at the opening side about 18 above the floor.
Sliding patio door hook up alarm wire.
Using a surface mount magnetic door switch and will make this easier in most cases.
In most cases it is wise to use a surface mounted sensor with a sliding door.
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Both wireless and hardwired sensors can be used for this purpose.
It is also very important to choose a door contact that is compatible with the alarm system that is being used.
Remove the old sensor.
The best alarm contacts for sliding doors are skinny contacts that can properly fit on the door and its frame.
Complete the following steps to replace wired door alarm sensors.
If the sensor is recessed you will need to pull it out from the door frame to access the screw terminals.
You do not need to fish the wires out from the wall.
They can be used with the new.
Use a screwdriver to disconnect the wires from the old sensor.
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