shuke
Black Ice Skeptic
Yeah, I wish mine only chirped when the battery is low. All alarms go off mega phone LOUD. They also do not stop when the battery is removed. They must all be unplugged to shut them up.Mine are wired but when one battery goes low only that one chirps..... I never had them all go off with a low battery in oneWe bought our home several years ago, and it came with smoke alarms that are wired with 9v battery as a 'backup'. Whenever a 9v battery goes bad in one of the alarms, ALL the smoke alarms in the house go off. We quickly learned to change out the batteries every year, regardless of how much 'juice' still remains in them. Also, we have 15 foot ceilings in parts of the home, so I have to run out to the garage and grab the big ladder. Having all the smoke alarms go off in the middle of the night at the same time is PTSD inducing.
I had never heard of smoke alarms wired into the house. Is this common? Is it worth it to uninstall them? They sure are annoying.
ETA - if you remove the battery they stop. The battery is there in case of a fire that knocks out the wired power.
Mine are wired and when a battery is low only that one chirps. What you may be experiencing is that one of the units is defective. I've had this happen a couple times when the one in the hallway outside my kids' bathroom goes bad from accumulated exposure to humidity. When one goes off they all go off, it's hard to determine which unit is defective.