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Old 21st April 2008, 08:40 AM   (permalink)
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Originally Posted by pcssmith
Hi,
Thanks a million for this advice. Can you help with a diagram?
Piet
You could use a commercial PIR sensor in the room, without the light and use the relay output to sound a buzzer.

hi,
Do you mean a diagram of this option.?
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Old 21st April 2008, 03:43 PM   (permalink)
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Hi,
It will help
thank you
Piet
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Old 21st April 2008, 06:22 PM   (permalink)
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Quote:
Originally Posted by pcssmith
Hi,
It will help
thank you
Piet
hi,
Look here:
http://www.info4security.com/section.asp?navcode=391

Also Google PIR detectors
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