Kidde Smoke & Carbon Monoxide Detector, Hardwired with Lithium Battery Backup

Fire & CO detector in 1 unit with alert modes, LED lights, & voice alarm, that states, "Fire! Fire!", "Warning! Carbon Monoxide!", or "Low Battery!" Photoelectric sensor technology - smoke detector detects visible fire particles, 85 decibel alarm alerts of fire Protects during a power failure - combo smoke and CO detector operates on a 120VAC power source with lithium battery backup Test-Hush Feature - silences the unit for approximately 8 minutes; tamper-resistant technology deters removal of the unit from the wall or ceiling Interconnect Voice Alert Open Box | Looks and appears to be in great condition. Unable to test. Everything included with this item can be seen in the images. See pictures for product condition.