cmos based single zone alarm


Posted on Feb 7, 2014

This circuit features automatic Exit/Entry delays, timed Bell Cut-off and System Reset. It has provision for normally-open and normally-closed switches and will accommodate the usual input devices (Pressure Mats, Magnetic Reed contacts, Foil Tape, PIRs and Inertia Sensors)..


cmos based single zone alarm
Click here to download the full size of the above Circuit.




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