3-Pack Carbon Monoxide Detectors，Smoke Detector，2 in 1 CO & Smoke Alarm，Smoke Combination CO Alarm,Fire CO for Alarm for Home and Kitchen,LED Screen, CO Carbon Monoxide & Smoke Alarm,3-Pack

Easy to install. Smoke detector works as should. They’re normal in size, compared to a normal smoke detector. They’re also mounted perfectly, making it easy to work around.

Great product

I have had them for a couple weeks and one has already quit working.

Easy to install. I installed it on my ceiling and constantly monitoring i can see the LED lights blinking occasionally. We'll see how long the battery will last.

After 7 months the alam sounded to change yhe battery, normal. Upon removing the back plate the battery was swollen and smoking. I removed and replaced with a brnd new battery that immedietly began to smoke, swell, and becime very hot to the touch. I tried the same process with the other 2 that came in the same package and both did the same thing, and no i tripple checked that i put the barrery in the correct way. Had i not been home i fear the house would have caught fire due to these malfuntioning smoke/co alarms. Do your self a favor and purchase at your local hardware store that carries a reputable brand. Yes they are expensive but worth the piece of mind.

Worked as should.. easy to install

Love this product. Easy to install, and cheap for the price. Great if you use natural gas, propane in your house. Central unit is natural gas and hot water heater. Also the three pack gave us extra for our other house that has a propane hot water heater.

Bought a three pack. One was defective. Screen didn't light up and the alarm was on constantly. Of course we didn't discover this until it was too late to return.