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Combo Smoke & Carbon Monoxide Alarms

(35 products)
First Alert combination smoke and carbon monoxide alarms offer 2-in-1 protection from both types of danger.

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.

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