Kidde Hardwired Combination Smoke & Carbon Monoxide Detector, AA Battery Backup, 5-inch

I am a landlord and I have to install these in all my unit hallways. They have been going up in price a lot over the last few years. As I already have Kidde installed, it is often easier to stay with this brand. I appreciate the price Walmart offers and their quick delivery.

Reasonably straightforward to install; compatible with my 5 or 6 year old Kidde hardwired units, though the plug has changed. Compatibility was very important to me, and it was hard to dig that information out of the various web sites. I will say that even within a single manufacturer's product line, there are really too many choices for much the same thing.

We purchased this as a replacement for one that was installed by the builder. No matter what we did the original one kept going off. We finally decided to replace it and this was the perfect match. Installed in minutes. And we've had no problems ever since which is going on 6 1/2 months. if you need a hardwired smoke alarm with the additional battery back up, this is the one you should purchase

Can't go wrong with Kiddi products, unless you buy the wrong product! Had these installed ten years ago. Carbon Monoxide part expires after 10years, even though it's hard wired, and usually will alert expiration by starting to chirp. These were hard to find, but got them on sale and saved $10 each. Bought enough (6) to replace all alarms in my house!

The Kidde product is great with terrific customer service for questions . Unfortunately, the item I bought had been previously sold, opened and returned in less than pristine condition so I needed to return it to Walmart as batteries were already installed and pigtail was stuck in locked position i.e. I was afraid it would not work properly.

I bought it to replace a smoke detector that was way way out of date and with an additional plug in adapter (because it was hard wired) for less than $5 it was installed with no problems.

Only issue was the installation. The fit between the body of the detector and the mounting ring was excessively tight. I had to file down the mounting tabs to get it on. I was replacing a previous Kiddie had aged out. It had the same mounting ring/style but no such issue. Another little bother, for some reason they had changed the electrical clip requiring that you rewire the new style clip in. The real test of these detectors are the frequency of random, middle of the night, false alarms and only time will tell for that.

The Kidde product line is very decent and picked by professionals for the overall use of Smoke and Carbon Monoxide detectors in houses. I like the fact that they have built in 10-year life batteries in some of the product line. I would particularly recommend the units with the 10-year battery life if the detector is located on a high ceiling or in a difficult place when it comes to changing the backup batteries (when hardwired) or when the unit is fully battery operated and located in a difficult place to service. Also, since the units that include the carbon monoxide sensors/function are only recommended for use for 10 years (they expire and the unit has a 10-year beeping alarm for replacement), it makes sense to only need one battery over the lifetime of the alarm. The little turning on/off switch on the underside of the alarm for the 10-year battery units is a bit confusing on the unit and within the installation documents. This could be improved so that the installer easily recognizes how that switch should be set. The alarm units are a bit confusing from the standpoint that some have 2each AA batteries for power, others have the 10-year internal battery, some only have a beeping alarm, others include a voice alarm also and some units are hardwired with battery backup while others are strictly battery powered. This is more difficult to discern when ordering the product online since some of the internet description info is not entirely accurate. Get the right one, they are generally competitively priced against other brands of detectors, they are fairly easy to install or replace an existing detector, and they are long-term dependable with being made in America.

Received the wrong item. All requests for original order come back "Uh-oh... This page could not be found". I ordered the wireless and verified this upon delivery. shortly after when I was getting ready to return it, I had no access to the original order.

Ordered 2 hardwire and after having electrician here found out that one was just a battery operated one. This was 3 weeks ago and still have not received replacement. Cancelled order and still waiting on refund, in the mean time we are down a smoke alarm which is not cool. Plus these things are way too expensive