X-Sense AC Hardwired Combination Smoke and Carbon Monoxide Detector, 1-Pack & Kidde Smoke Detector, Hardwired Smoke Alarm with Battery Backup, Front-Load Battery Door, Test-Silence Button, White

• Product 1: 10-Year Product Life: This 120 V AC combination smoke and carbon monoxide detector features high-quality sensors and components which are built to last 10 years, protecting your home for a decade. it is hardwired into your home's power with a 9 V battery backup Product 1: Detects Both Smoke and CO: The X-Sense detector features a photoelectric smoke sensor that detects smoke from slow-burning fires, as well as an electrochemical CO sensor that detects dangerous CO levels in the air Product 1: Reliable Safety Network for Complete Monitoring: Interconnect up to 18 X-Sense hardwired detectors to detect potential danger anywhere in your home, for complete monitoring and safety Product 1: If One Alarm Goes Off, All of Them Will: When one alarm is triggered, all emit a loud 85 dB sound, to ensure that everyone in your house is alerted. the backup battery ensures that all units are always connected and continue to function normally, even in the event of a power failure 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