Combo Smoke & Carbon Monoxide Alarms

First Alert 2-in-1 Combination Smoke & Carbon Monoxide Alarms

First Alert combination smoke and carbon monoxide (CO) alarms offer 2-in-1 detection from both types of danger with a variety of feature offerings to deliver advanced and reliable fire detection to help protect your home and family.

• 10-Year Sealed Battery Combination Alarms

  10-year sealed battery alarms eliminate the need for battery replacements and late-night low battery chirps for the life of the detector.

• Hardwire Combination Alarms

  Most hardwire alarms contain a hardwire connector plug that makes installing the combo detector easy. For coverage during power outages, the device offers a back-up battery feature for continuous smoke and CO detection.

• Battery-Operated Combination Alarms

  Battery-operated detectors are easy and convenient to install throughout your home for additional detection.