Fireboy 12V carbon monoxide detector for marine use. It features automatic generator shutdown capability. When dangerous CO levels are detected, the CMD-4MR-RLY CO detector shuts down the generator, a common source of carbon monoxide.
This detector also features multiple location warning, allowing up to six detectors to be linked in series. When one detector alarms, all connected detectors will alarm to alert boat inhabitants in other locations to the presence of carbon monoxide. State-of-the-art sensor is unaffected by common cleaning solvents or marine environment.
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Not As Good As They Could Be
Only lasted 3 years then won't power on. They are only good for 5 years but seem to last less than that?