DIY Doctor UK DIY Forums

Posted: **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

Posted: **Mon Feb 14, 2011 10:40 pm**

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