Install convenient 2-in-1 protection against both smoke and carbon monoxide with the First Alert SMICO105-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with 10-Year Battery Backup. Meets new industry standards and can interconnect with other compatible alarms to create a whole home safety network to help provide an early warning.
- Precision Detection technology helps reduce cooking nuisance alarms and provides early warning. 
- 10-Year battery backup provides continuous protection during power outages 
- Through early warning interconnect, when one alarm sounds, all compatible* alarms will sound 
- Quick Connect Plug allows for easy installation with no need to rewire 
- Alarm indicator visually identifies the unit that initiated the alarm 
- End-of-life warning lets you know when it’s time to replace the alarm