Editorial Product Review:

Item Description:
AC powered with 9 volt battery back-up, battery included, ionization sensor, latching alarm indicator, single button test/silence, mounting bracket lock, battery drawer lock, battery pull tab, side load battery drawer and dust cover.









Product Availability: Usually ships in 24 hours

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Customer Rating: - Replaced my aging smoke alarms
I recently replaced the 14-year old smoke alarms in my home with these 9120B units (identified as the suitable form-fit-function replacements for the contractor grade units that were installed when my home was built). Good price for a 6-pack. Installation was a breeze since the power leads from the old units worked without modification for the new units. Note: old units had labels indicating a 10-year service life, so if your home is older than 10-years you should consider replacing your residential smoke alarms.

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Customer Rating: - so far so good
Did a fair amount of research on these because our "old" ones did the oft-reported chirps and middle of the night full on alarm for nothing. My kids are now (unfortunately) well trained to sleep through the alarms... In any event, I finally gave in and bought these. No chirps so far or middle of the night false alarms yet.

In my research I saw that there was ultimately no difference between the BRK brand we had and the First Alert as FA had bought the other company. Also reported as an issue by others were the dates on the units. These new ones were ok - not super recent but around a year old, so hopefully will last a while. (Of note, I remarked taking them down that the old ones were dated right at the time they were installed - so perhaps professional contractors have access to the latest ones?). Per advice online of others I did purchase from Amazon directly.

Even though the newer models required a new plate to be installed, it was 2 screws off and two screws on and done - so really no big deal. The same electrical plug-ins still worked.

I will post back if we have problems, but I also saw just after these went up that they now have these brand new flatter ones. I would have looked into those.