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Registered
Join Date: Dec 2002
Location: Worcester County, MA
Posts: 853
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Joe,
The line voltage detectors with 9V battery backup should be readily available at your local HD or Lowes, or any other hardware store for that matter. You could also try an electrical supply store if you have one nearby.
And to the OP, you definitely want to replace the detectors every 10 years or so.
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