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burglar alarms
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if your alarm is going off and youve forgotten the pin number will cutting off the main power stop it ?
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For more on marking an answer as the "Best Answer", please visit our FAQ.It shouldn't do if it's been correctly installed. There is a 12 volt back-up battery in the control panel and you would have to remove this also. Even then, if your alarm has s.a.b fitted, which it should have, the external siren will continue to ring for a maximum of 20 minutes. It's a legal requirement that it must not ring for longer.