Kidde Smoke & Carbon Monoxide Detector, AA Battery Powered, LED Warning Light Indicators, 4 Pack

These are the detectors you want! Photo-electric detectors will pick up smoldering fires as opposed to just flames. Also dual carbon monoxide and smoke detector alarm puts my mind at ease. Super easy to install & silence. So worth the price.

These seem to work pretty good but after a few weeks they started chirping, we had lithium batteries in them they wouldn't quit chirping until we put Alkaline batteries in .

The Kidde Smoke & Carbon Monoxide Detector is one of those products you install and immediately feel safer. This AA battery-powered unit is an absolute home essential, offering crucial dual protection against both smoke and the invisible, odorless threat of carbon monoxide (CO). Installation was a breeze. It came with everything needed, and I had it mounted and tested within minutes. The fact that it's battery-powered means I didn't have to worry about wiring, and the AA batteries ensure reliable operation. The LED warning indicators are clear, and the unit performs a reliable self-test function. Knowing that this one detector is constantly monitoring for two of the most significant household dangers provides tremendous peace of mind. This is a five-star safety investment that every home should have. Highly recommended for superior, hassle-free protection.

My first Kidde Smoke and Carbon Monoxide Detectors lasted 10 years before the end of service life alarm started going off. I plan on having these for just as long. These new alarms are even louder than the ones they replaced which is nice in the event of something happening while someone is asleep in the house. They are built well with strong plastics and even fit in the old style housing so I was able to reuse the previous mounts instead of drilling more holes in my wall. The cost has gone up on them but its well worth the cost for the safety they bring.

These detectors are simple to install and start working right away, giving peace of mind with both smoke and carbon monoxide protection. The LED indicators are clear and easy to read, so you always know the unit is active and functioning properly. The AA battery design makes replacements quick and convenient, though sealed‑battery models may last longer without maintenance. Overall, this 4‑pack is a solid value that provides dependable safety coverage for multiple rooms in the house.

Very easy to install and easy to test - the loud alarm is more than sufficient to wake from a deep sleep. After installing the mounting plate - two screws with wallboard anchors, simply remove a sticker preventing battery and terminal contact and twist the unit to secure to the mounting plate. Again, then test and the alarm is loud! If you're comparing with others, do pay attention to see if the unit is UL approved, not just tested to UL standards. Many of the cheap ones from china are NOT tested and approved by UL. If you read the low rating comments on those cheaper units the stories should give you sufficient pause to spend more for quality that protects your life.

I've always just got the cheap $20 smoke alarms but I decided to get the combo because I live in a century year old house and I have very few outlets, so plugging in a carbon monoxide detector is impossible. Thought this would solve the issue! Wrong. I bought this 14 months ago and I keep getting a Smoke Fault alarm. The manual said to go ahead and reset it and it should be good to go. However, if it keeps doing it the manual recommends tossing it immediately and get a new one! Really??? For $60 a pop? Just toss it, oh and don't forget to buy another one from them! I reached out to the company a few days ago and have yet to hear back. They do have a "10 year warranty" which puts all the work and cost on you the buyer. Sounds like you have to send it back(at your cost), and they will fix it?? Then you also have to pay to have it shipped back to you. Next time I see a 10 year warranty I'll read the fine print. I'm better off buying the cheap ones that do last the full 10 years.

Good price and woks well