Wire Loop Alarm


Posted on Mar 28, 2013    6378

This circuit is a simple wire loop alarm that can be used in doorways, hallways, or any other place the tripwire will be broken by intruders. The circuit has a built in siren, but it can be replaced by a relay to drive an external siren, commercial alarm, etc.


Wire Loop Alarm
Click here to download the full size of the above Circuit.




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