single zone home alarms systems


Posted on Feb 6, 2014

This is a simple single zone home Alarms Systems circuit. Its features include Entry delays, a timed Siren Cut-Off and and automatic Exit. It`s designed to be used with the usual types of normally-closed input devices such as - - foil tape - micro switches - magnetic reed contacts and infra red sensor.


single zone home alarms systems
Click here to download the full size of the above Circuit.

But it can be Easily modified to accept normally-open devices - such as pressure mats.




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