-Continues to work even if there’s a power outage because it’s battery-operated
-Uses an electrochemical sensor for carbon monoxide and a photoelectric sensor for smoke
-Has three types of beeps—one for detection, one for low battery, and one for end of life

-Features a hush option
-Warns you about carbon monoxide after detecting at least 100 parts per million
-Includes batteries

-Has an LED display that gives you a reading of your room’s carbon monoxide level
-Features a test button to make sure that the detector is working
-Comes with a 10-year warranty

-Can be purchased in other packs with more than one detector
-Its digital display tells you the charge of the battery
-Has an LED light that turns green when it’s working and doesn’t detect carbon monoxide, yellow when it’s not working, and red when it detects carbon monoxide

-Available in battery-powered and hardwired versions
-Can silence the smoke alarm from the mobile app if there’s only a little smoke from cooking
-Lights up when you walk by it to help you see where you’re going