Burglar Alarm model the circuit closes

This entry was posted on Monday, November 17th, 2008 at 7:34 am and is filed under Audio - Alarm, alarm home system, basic electronics.


This circuit works with battery 9V a piece is very small. For the work happens independently don’t be under house electricity. The circuit will make a noise to warn work as soon as , detect which be switch model usual close the circuit or aluminium , eliminated separate.


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