Kidde AC Hardwired Interconnect Smoke Alarm with Hush I12040 (4-Units)
- Ionization sensing technology - hardwired smoke detector senses invisible fire particles, 85 decibel alarm alerts of fire.
- Still works during power failures - smoke alarm with battery backup operates on a 120V power source with 9V battery included.
- Easy to install & front-load battery door makes for quick battery replacements.
- Test-Hush Button - it’s simple to test or hush false alarms by pressing the button right on the face of the device.