· Loud voice alarm indicator: Uses voice alarm to announce "Fire, Fire," or "Warning, Carbon Monoxide"
· Smoke/Fire and Carbon Monoxide Protection: Combines two important types of safety alarms in one unit
· Test/Reset Button: Single button easily tests smoke and CO sensors simultaneously
· Low Battery Warning: Unit chirps once, voice announces "Low Battery!" and red LED light flashes
· Easy Installation: Adjustable mounting bracket included
· Battery Operated (batteries included): unit provides protection even during a power outage
· 5 Year Warranty