3 Pack Combination Smoke and Carbon Monoxide Detector Battery Operated, Travel Portable Photoelectric Fire&Co Alarm for Home, Kitchen

Good price, easy to install, seem to be working.

I purchased the 3 pack combination smoke and carbon monoxide detectors. It arrived promptly and worked perfectly. It’s battery operated and very easy to install. Not a fancy device but worth the money. Would recommend this product to anyone.

Our old devices were starting to malfunction so the same day we ordered four new detecters after reviewing several on lone. Within a few days we had our detecters and had them installed with in a few minutes with just a screw driver.

Bought these to add more safety and security to our home. Our original smoke detector died so I tried this pack. I am impressed so far. They seem to be working just as well as other ones I’ve seen. These are good quality and best yet, they detect smoke and carbon monoxide giving a feeling of security.

Great value for a combination smoke/co2 detector. I tested them by burning a little paper nearby and all of them alarmed after a minute or two. After having them installed for a few weeks, one randomly started going off in the middle of the night. Each time I reinstalled the battery on that one, it went off. I reached out to customer support and they refunded that detector, so they're responsive and helpful with issues. Even though 1 out of 4 of the detectors was defective, they remedied the situation, so I'm happy.

They come with batteries, which is great. So far they are working good, but once or twice a day, they will beep a quiet beep.... So I'm assuming that beep is the Detector checking itself.... at least I hope it is...or the battery they came with is not fully charged.

We needed to replace our existing alarms throughout the house so we found these on Amazon they were delivered 2 days later

This is a good smoke detector. It does the job and I love that it is pretty small. The batteries it comes with are cheap though. They are either already dead upon arrival or die within a few months. Make sure you have some extras on hand! The alarm that sounds when the battery dies is loud and nonstop.