Quote:
Originally Posted by Scubawise
Mine was a hard wired co2 Detector.
Small black device 4 inch by 1 inch..hard to find..
Had green light showing working..if red or nothing failed
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Interesting.
Both of my Carbon Monoxide detectors have their own battery source.
My Propane detector is near floor of wall across from stove. It is hard wired. If I turn off my Coach (House) switch; it shuts that protection off.
OP should be able to get next to any of those and confirm the beeping. Replace battery or unit as required.