Rated 3.9 out of 5 by 8
Rated 2.0 out of 5.0 by Matt First Alert 9120LB
I replaced all 10 of old smoke detectors with this model. 3 have failed within 14 months - started chirping; even replaced with new battery-no dice. I replaced all 3 with the same model. Two of those 3 have failed and of course they were the highest ones over 25 feet.
May 25, 2016
Rated 4.0 out of 5.0 by Charles217 Smoke Alarm
Replaced my old one of 3 years with the same model
January 12, 2016
Rated 1.0 out of 5.0 by Frustrated Bad from the start
Bought these to replace the ones that went bad (alarms started going off 3am for NO reason) . After changing base to fit these (new ones) - I plugged it in and it started CHIRPING within 2 minutes ! ! And it never stopped ! I will definitely RETURN the both of them . I think I'll go with battery powered only and a different brand this time - but I've seen a lot of bad reviews from the Kidde brand as well , so I 'll probably stay away from those as well .
January 26, 2015
Rated 5.0 out of 5.0 by Sfar Upgrade from D Battery Backup
My 9120B smoke detectors turned 10 this year, so I decided to replace all 5 of them with new lithium battery backup models. The wiring and the plastic mounting rings for both models are the same, so I was able to simply (turn off power) twist off the old units, pop off the wires and plug them into the new unit, and then twist on the new units. Everything tested fine, and now I won't have to deal with low battery chirps every 6 months.
January 20, 2015
Rated 5.0 out of 5.0 by Dorito Up to date protection, easy to install
This was a replacement for a 10 year old unit, it was a piece of cake to put in. The bezel that mounts to the ceiling was just slightly larger than the original so it covered the slight indent left by the original. Honestly I think this took about 10 minutes to have fully operational, that included opening the package and glancing at the instructions.
March 12, 2014
Rated 5.0 out of 5.0 by PATRIOT SMOKE ALARM / FIRST ALERT
EASY TO INSTALL & WORKS REALLY GOOD. FOR A REPLACEMENT UNIT FOR ANY BRAND YOU HAVE OVER 10 YEARS ITS EASY TO DO. GREAT BRAND & GREAT PRICE. 10 YEAR BATTERY IS ALSO GREAT IN THIS UNIT.
May 23, 2014
Rated 5.0 out of 5.0 by Tony There are not many wired smike detectors out there with Lithium batteries
Exactly what I wanted at a good price. I had been looking all over for wired smike detectors with litho=ium battery back ups. These were exactle what I needed, easy to install and no replacing batteries every year.
January 14, 2014
Rated 4.0 out of 5.0 by TAM5 Was looking for 110V and lithium backup
Exactly what I was looking for. Replaced 22 year old smoke alarms in a few minutes.
November 1, 2013