3 Pack Combination Photoelectric Smoke Alarm and Carbon Monoxide Detector Battery Operated with Digital Display (White)

The alarms came on time. All 3 alarms were in perfect condition and came with batteries. Took 5 minutes to install and you immediately know they are working properly because of the green light sensor. Would definitely recommend and buy again in the future

The smoke and carbon monoxide detector is a reliable and efficient device that combines dual detection in one unit. Installation is straightforward, and its sleek design blends seamlessly with home décor. The loud alarm ensures you'll be alerted to any danger, and the device has impressive battery life with a low battery alert feature. Overall, it offers comprehensive protection and peace of mind for your home.

Great price, directions, and quality.I really like that it brinks green with its working. It comes with batteries! Alarm is loud and shows the CO2 measurement. Very Easy to install.

Installed in my new home. Loud effective chirp. Easy to install. Came with batteries. No issues so far and the price was reasonable

Overall, these seem great. I mean, with a smoke alarm you can't really tell how well it works until your house burns down. They were easy to install, and appear to be working.BUT there's something you should know: When you first put the batteries in (or remove the tab to activate the pre-installed batteries) the unit will beep VERY LOUDLY, and do so for nearly 30 seconds. (That's a long time to watch your children and pets run away in terror!) The instructions say the unit will "calibrate" when it starts, but it does not say that this calibration involves 85dB beeps that go on for so long that you will think the unit is defective. Pushing the Test/Reset button does nothing during this time, and if you panic (as I did) and remove the batteries, that only restarts the process.I think these are probably good alarms (they are certainly loud enough), but please warn your housemates when you are about to set them up.

I like the fact that they are easy to install and are really loud which will make it easy to hear if an emergency arises. They are good looking too. I bought them to replace my old smoke detectors. Getting this gives me peace of mind knowing they are both smoke and carbon monoxide detectors.

Simple and effective 2-in-1 alarms for a good price!

So far so good. They are nice and loud which is what I needed for my mom. They are easy to put up and look nicer than most brands.