Quote:
Originally Posted by captboxcar
Beeping detectors are a sign of low battery only. If CO or smoke/fire is detected it will go into alarm.The reason for all detectors to sound after one goes into alarm is to notify all residents in the home of regardless of initial alarm area. Some people have hearing problems or sleep very soundly and might not hear the alarm from the detector initially sounding especially in homes with basements and multiple floors.
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I would rephrase that to say that usually the beeping detectors are a sign of a low battery only. I had a 4 wire smoke detector that was wired to my security system that went bad. The smoke detector was beeping, even though it was powered by the security system control panel. The solution to fix that problem was to replace the 4 wire security system smoke detector with a new 4 wire security system smoke detector. There are also 2 wire security system smoke detectors that are used for some security systems.
If you have a security system, you need to determine if the smoke detector is part of the security system, or independent of a security system. If you don't have a security system, that answer is obvious. But if you have a security system, you need to determine if the smoke detector is part of the security system or a stand alone smoke detector.