Hi Jason

In article ,
Jason wrote:

You should be able to find a piezo buzzer alarm for a couple bucks at
Radio Shack. They require very low amperage (~10-20mA) so you wouldn't
even need a relay. You can find them with sound output over 100 db.
which will wake the dead.

Thanks for good advice - this seems to be the best way to go, and simple
too.

Marc

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