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stand alone pir

Postby gannet » Fri Feb 11, 2011 9:14 pm

hi there
i hope i am in the right place for this
will a mains stand alone pir activate a alarm siren that i want to fit near my heating oil tank and can you buy mains sirens or would i have to step the voltage down to 12v
regards peter
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Simply Build It

Postby stoneyboy » Mon Feb 14, 2011 10:40 pm

Use a pir which is ok for low energy lights and a mains siren.
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