Install convenient 2-in-1 protection against both smoke and carbon monoxide with the First Alert SMICO105-AC Hardwire Interconnect Smoke and CO Alarm with 10-Year Battery Backup. Meets new industry standards and can interconnect with other compatible detectors to create a whole home alarm system to help provide an early warning. 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.
Features
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 detector
Earn 5% back¹ in rewards, plus more exclusive perksEarn 5% back¹ in rewards, plus more exclusive perks
Get $40 off your qualifying first order of $250+** with the Wayfair Credit Card! Valid through 5/7/2026.Get $40 off your qualifying first order of $100+** with the Wayfair Credit Card! Valid through 5/7/2026.
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