How do the door/window sensors work?

The door and window sensors are the same piece of equipment. They are designed to detect any time that a protected door or window is opened. One piece attaches to the door or window itself and the other piece attaches to the door or window frame.

When the door or window is closed, the sensors are lined up and read the door or window as closed. When the door or window opens up, the sensors are separated which tells the system that the door or window has been opened. Your system will verbally tell you anytime this occurs even if the system is not armed.

When the system is armed, the interior siren will sound as well to alert anyone in the home that there is a problem. There are certain situations in which the use of a spacer will be required to be able to properly install door/window sensors and also to ensure proper operation. If you have any external doors that you will be protecting that are completely constructed of steel (not aluminum), it is very likely that a spacer will be ... more.

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