Best door the home alarm
The track issued by the buzz and / or light-emitting diodes to illuminate when someone touched the door handle from the outside. Sound the alarm until the circuit will switch to shut down.
The whole track is closed in a small plastic or wooden box, and should be hanged up the door way to deal with thick wire at the top of uncinate process.
Wide range of sensitivity control to allow the use of door alarms of a variety of types of doors, locks and handles. It has been proved to be reliable, even if some of the lock contact with the wall (brick, stone, reinforced concrete), but not with all the metal doors.
LED is very useful in the process of installation.
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