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Combination Smoke & Carbon Monoxide Alarms

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

Install on every level, every bedroom

2-in-1 combination smoke and carbon monoxide alarms detect both types of danger. First Alert offers 10-year sealed battery, battery and hardwired options with features like interconnect, so when one sounds all sound. Combo alarms can also include voice and location alerts and more to provide reliable detection.



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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