Kidde Smoke & Carbon Monoxide Detector, AA Battery Powered & Smoke Detector, Hardwired Smoke Alarm with Battery Backup, Front-Load Battery Door, Test-Silence Button, White

• Product 1: 2-in-1 Detection - Smoke & carbon monoxide detector combo alerts you to both smoke & fire events as well as poisonous, CO gas in a single device Product 1: 24/7 Self-testing components are always checking the device to ensure it's operating as expected (not a substitute for a manual push test) Product 1: Easy installation mounting bracket included for quick installation in 4 orientations Product 1: Photoelectric sensor detects visible fire particles associated with slow, smoldering fires, while the electrochemical sensor detects carbon monoxide Product 2: Ionization sensing technology - hardwired smoke detector senses invisible fire particles, 85 decibel alarm alerts of fire Product 2: Still works during power failures - smoke alarm with battery backup operates on a 120V power source with 9V battery included Product 2: Easy to install & front-load battery door makes for quick battery replacements Product 2: Test-Hush Button - it’s simple to test or hush false alarms by pressing the button right on the face of the device, Manufacturer: Kidde