About this item

• First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency
• Voice & location alerts tell you what the danger is and its location to help you escape safely
• Through early warning interconnect, when one alarm sounds, all compatible alarms* will sound
• Battery backup provides continuous protection during power outages
• Provides reliable 2-in-1 protection against both smoke and carbon monoxide