Hardwired Combo Smoke & CO Alarm 10Y BATT
*Power Type: Hard-Wired w/Battery Back-up
*Sensor Type: Electrochemical/Ionization
*Product Type: Smoke and Carbon Monoxide Detector
*Number in Package: 1 pk
*Batteries Included: Yes
*Packaging Type: Clamshell
*Test and or Reset Button: Yes
*UL Listed: Yes
*Low Battery Indicator: Yes