I bought these in a set of 4 and installed them in 2016. First failed in 2017 and second failed in 2018. Both began sounding off intermittently.
If you live a boring, uneventfully life and looking to spice it up a little, by submitting yourself to random fire drills (invariably in the middle of the night), for no apparent reason- look no further! This product is your choice!I really wish I didn't invest so much in them - my house has eight installed, all interlinked (to make it even more challenging to find out which one had gone berserk), but at this point I'm really tempted to take them all down with my baseball bat.
These were really easy to install.
Absolute garbage. They chirp for no reason. They randomly go off for no reason. There are no directions or support online. It is extremely difficult to replace the battery. Our contractor put these in when we remodeled the house. If we ever remodel again, I'll ask the contractor to promise in writing that he won't use this brand.
I was the item I needed to repair my system. No Problems Thank You
Replaced older model with the 9120B. Probably took 20 minutes to replace all 5 in the house.
Needed to replace 20 expired Firex models, which are now owned by Kidde. Being that market leader, Kidde had ZERO interest in making the job easy and rather than supplying an adapter, was insisting that I rewire each detector with a new harness. Hmm... twenty x 15min each is more time than I care to invest in this project. Then I discovered these nifty items First Alert ADF-12 BRK Smoke Alarm Adapter Plug (Pack of 12) made by their competitor who's obviously interested in taking market share. Literally, replacing each detector was a 2min job.So far so good. I've been living with them installed for about a week and so far, no false alarms as others have reported. My only criticism thus far is that the color is ARCTIC white as opposed to off-white, so for those of us with more modern flat or matte ceiling colors these detectors tend to stand out more than Kidde models. Refer to my pic to see the color difference. Wish First Alert would make an off-white version.
I installed seven of these units in my mother's new house in 2006. From the day she moved in the alarms would go off for no apparent reason at all hours of the day and night, on average about once or twice a week. The First Alert people were no help at all. There was no dust, no spiders, no exhaust, no heaters going on, no fans blowing, just brand new defective smoke alarms. They are so loud they can't be ignored, and when one starts, they all go off. Since one defective unit can set all of them off, I tried unplugging one at a time, but there must have been more than one defective one. I finally gave in and replaced all of them at a cost of $250 (local hardware store). Unfortunately, one of the new ones must have been defective also, as the problem recurred, only less frequently. Ten years on, I still get false alarms, about one every three or four months. First Alert advises that the units need to be cleaned with compressed air once a month for proper operation (oh, and tested once a week), and if a unit is still giving false alarms a month after you clean it, they will replace it for no cost. Since I have nine foot cielings and the false alarms occur less than one per month, this is not, in my opinion, feasible or reasonable. Save yourself a lot of ear-splitting frustration and buy another brand.
Overly sensitive, pretty much any cooking will set it off, even if no food is burned. Until I can find a replacement, I have to set up a fan blowing air away from this alarm while I'm cooking. The alarm isn't even close to the kitchen.I've never had this problem before in any other house I've lived in.
"Random chirping" is far too polite a description. At 4 a.m. it randomly chirped - by which I mean emitting a bone-curdling screech. There was no smoke, none of the other smoke detectors were going off. So I eventually went back to sleep, and it "randomly chirped" again. I called their customer service and got a woman who was not helpful. So I ripped it from the ceiling and tossed it into a closet in a room I rarely use.Buy any other brand unless you enjoy random chirping.
Installed in multiple rooms on 10 foot ceilings by supposed high end contractor on a first story remodel. This must have worked fine for 3 years as I never noticed them and the contractor gave no instructions. Then single chirping occurred and I finally looked on-line for instructions. I took it down to change the battery back-up but the plastic casing for the battery is so poorly designed (like the free plastic toys that are now illegal in candy corn) that it took 15-20 minutes to change the battery without breaking the plastic casing. I've talked to others who either broke the casing or pulled down the entire unit to stop the chirping. A month later same thing occurred to another alert and same problem with trying to get the battery into the casing in the correct direction. They are poorly designed--probably so the contractors can put them in to satisfy the laws but assume they will be broken and unusable. Unfortunately there is a hole in the ceiling as these were hard wired.
WOW!!!!! I was just about to buy 8 of these alarms to replace the 8 current ones I have in the house. The ones are only 5 years old. It doesn't look good when 98 reviews rate the product 5 stars and 97 rate it 1 star. I am adding to the one star category. I really don't believe the five star reviews. THESE ARE CRAP DETECTORS!!!!!!! They go off ALL THE TIME FOR NO REASON - OF COURSE always at night or early morning hours. Somebody must be paying off the builders to install them. GARBAGE, GARBAGE, GARBAGE - Batteries have been replaced multiple times without any change in the situation. Now I will buy Kidde or another manufacturer of product that works as is advertised. I agree with the one review - these ought to be pulled from the market.
Priced cheaper than in Costco for comparable product, very easy to install & it looks good on the walls or ceilings.
You will be sleeping. Then you'll be dreaming about a little bird chirping occasionally on your windowsill. Then the bird will become annoying. Then you'll be awake and realize that the bird is your BRK 9210B Hardwired Smoke Alarm with Battery Backup. It has woken up your entire family. You will attempt to reset it. It will continue to chirp. You will replace the battery with a fresh one. It will continue to chirp. (The next day you will test the old battery and discover that it's still perfectly good.) You will disconnect the offending smoke alarm and it will continue to chirp until the last bit of power drains from is useless plastic body. You will try to go back to sleep, but will lay awake in bed ...praying that nothing catches fire. The next day you will write one of scores of 1-star Amazon reviews of this piece of garbage.
Thank you Amazon reviewers for saving me from wasting my money on this horrible product. I have 9 BRK 4120 smoke alarms in my house, installed by the builder. For the past year I have endured several nights of blaring smoke alarms going off for no apparent reason. As others have done, I also replaced all the batteries (not that cheap when you have 9 alarms!), vacuumed the alarm, called BRK, etc etc. I was told by BRK that the problem is simply that my detectors are old and need to be replaced. I had gone online to order the replacement model 9120, when I saw all of the negative reviews. After reading about everyone else's experience and realizing we are not the only family to deal with this miserable product, I am definitely switching to a different brand.
My problem is slightly different, but no less aggravating, from those reported by other users in that my detectors do not go off at random. Rather, whenever the temperature in the house rises above 76 degrees or falls below 60 degrees, 4 of the 6 detectors go off. Note: These temperature ranges are well within the operating limits of these detectors.I tried all the initial troubleshooting steps: Replacing batteries, vacuuming the units, removing power completely and discharging the units (see elsewhere for the exact instructions), all to no avail. What works is turning on the central A/C when the house gets too warm (or blowing air from portable fans) or turning on the heat when the house is too cool. These aren't really viable or inexpensive solutions, especially since even in the mildest weather, heat rises to to the 2nd floor which is where the malcontents are (were) installed.Thinking that the problem might be that just one was defective and it was causing 3 of the others, which are wired in series, to go off, I removed one unit completely, and discharged the other units. I still had the problem so after trial and error, I actually was not able to narrow it down to any single defective unit. All the units have the same manufacture date: May 05, 2006.I was going to order replacement units but after reading so many poor reviews, I am looking for alternatives.
I have the same review as everyone else. These things seemingly beep in the middle of the night, and scare our 2 year old out of his mind. Replacing the batteries doesn't seem to work, I've burnt through a 12 pack of Duracell D's in the past six months, with only 7 detectors. As I write this, I'm taking long deep breaths and trying to calm myself because I too am ready to discharge a weapon directed at these things.When house was remodeled, these came installed. Warning, do NOT buy this brand. Not kidding. REDRUM.