Bill & Bob et al,
How about one of these?
http://cgi.ebay.com/ws/eBayISAPI.dl...item=7598990573
and some more info:
http://www.generalmonitors.com/down.../TS420_DATA.PDF
Looks like it would need to hook to a current sensor/obnoxious noise generator - a small Radio Shack project, perhaps? (or maybe a modified smoke detector??)
Paul
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