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MissB

(15,806 posts)
11. If they're relatively newer smoke detectors, they have a shelf life after installation.
Wed Oct 28, 2020, 04:10 PM
Oct 2020

And they’ll alllll go off because they were likely installed on the same day.

So you might just have to replace all of them.

Latest Discussions»The DU Lounge»My smoke alarms all went ...»Reply #11