1st generation the sensor and magnet should be no more than 1 2 apart.
How to attach an alarm door sensor to garage door.
1 push the safety sensor with attached carriage bolt.
Garage door alarm sensors.
Garage door alarm sensors are for security purposes.
The idea is to connect them to an existing alarm system.
The sensor box typically goes onto the garage doorframe.
Installing the sensors as part of the garage door opener installation requires attention to wiring and adjustments to the devices themselves.
The sensor and magnet need to be close together.
One part should be mounted on the door or window the other on the trim but it doesn t matter which one goes where.
There are two types of door alarms i e contact and tilt.
How contact sensors work.