Kidde i12040 120V AC Wire-In Smoke Alarm with Battery Backup and Smart Hush

I ordered this smoke detector to replace one that had went bad. I wasn’t sure if it would connect to the old base, but it did! I did not have to do anything other than plug it in and screw it back into the base that was already on the ceiling.

I was looking to replace fire alarm in one room and figured out they are very expensive, unreasonable priced. Found this one - perfect match. Thank you

Easy to install.

Great

I was replacing circa 2000 FireX detectors (120-1072B) with these. Thought they’d be a simple swap using the pin adapter that is sold separately. Well they aren’t. The mounting bracket also needed to be changed making it a longer project than I had hoped for. These do look nicer because they’re white and not yellowed from age, and the bracket looks a bit sleeker than the old setup. Also, I installed two before I realized all the punch out choices in the mounting bracket are differently spaced to accommodate different can widths in the ceiling. I moved screws for the first couple but this shouldn’t be necessary if you select the appropriate pair of holes in the mount. Last, the holes in the mounting bracket need to be punched out. I recommend using a larger flat head screwdriver to do that. Some were a little tough to get out but brute force works.Too early to tell if they false alarm but testing them all shows theyre networked as they should be. So now we wait and hope there’s never a fire to test them and hope they don’t false alarm.

Very easy to replace my old Kidde! Mounted right on the existing mounting plate and connector.

This was a replacement for an older model, so all the wiring was in place. Had the electrical experience to complete the installation, which made the job easy to complete.

I bought 7 of these to replace the 10-year-old Kidde Model 1275s installed in our home by the builder. Installation was a snap -- simply dismount and unplug the old model, and plug in and mount the new one. Literally a 30-second operation.NOTE: although I didn't see it mentioned anywhere (including on the box), this unit was supplied with a battery already included. I wish I had known that as I ordered a package of 9-volt batteries at the same time. Now I have plenty of spares...The battery is pre-installed in the unit, with a plastic tape tab that you pull to connect it, without having to open the battery compartment. Again, very convenient. In addition, the unit is supplied with a plastic "shower cap" that covers the unit in case it is installed during construction -- the cover keeps it from being contaminated by construction dust, and is easily removable when work is done.If you are doing a new installation, a pre-stripped pigtail is provided for a plug-in connection to the AC cables in the outlet box. Kidde has really gone all out to make this unit as simple and fast to install as possible. The provided documentation is clearly written and very thorough.These units are white, while the older 1275's were a beige color. All this means is that if you do the simple remove-and-replace installation, you will have a white detector mounted on a beige mounting ring. No big deal for me -- the package includes the white mounting ring, but I didn't feel like swapping out the mounting rings as well. As my wife said, "who looks at a smoke detector, anyway?"If you do want to swap the mounting rings, it too is simple. Unscrew the two screws mounting the ring to the outlet box, remove the old ring and replace it with the new one, and tighten the screws.The old 1275's were absolutely trouble free for the 10 years we had them, and I am looking for another 10 years of good service from these. My only complaint is that (as recommended by Kidde) the old units apparently will go straight to the landfill -- it's too bad there is no recycle program for used smoke detectors.