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Without Good Batteries, Your Smoke Alarm Could Fail You. Here’s How to Replace Them Properly

There are times when your smoke detector may start chirping even when you have just replaced the batteries. In that case, ...
CNET5 年

How to stop smoke detectors that keep going off - CNET

How smoke detectors work There are two different types of smoke detectors. Ionization smoke detectors have two plates with an electric charge flowing between them.