This device is great!
I first realized I needed a Carbon Monoxide alarm when I got my water heater worked on and I could smell gases. This alarmed me enough, then I realized that carbon monoxide has no odor or color. I decided to purchase this First Alert Carbon Monoxide Plug In Alarm with Battery Backup and Digital Display because it seemed like the best choice and the safest, and I was right. It's easy to use, easy to read, and if my power ever goes out the alarm will still work. It was absolutely worth the money. Everyone should make sure they have one in their home!
amd2013
USA