First Alert Battery Combination Smoke & Carbon Monoxide Alarm | SMCO100
The First Alert SMICO100 Battery-Operated Combination Smoke & Carbon Monoxide Alarm is equipped with First Alert's Precision Detection advanced sensing technology and meets new industry standards. This 2-in-1 smoke and carbon monoxide alarm provides reliable protection against both threats and is easy to install and maintain.
Price and availability captured 2026-08-21 and subject to change. The price shown on Amazon at the time of purchase applies.
0% above the 1-year average. Record low $36.99.
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Specifications, review intelligence and safety
- • 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
- • Provides reliable 2-in-1 protection against both smoke and carbon monoxide
- • End-of-life warning lets you know when it’s time to replace the alarm
- • Battery-operated alarm allows for easy installation and maintenance
- • Test/silence button for efficient testing to ensure alarm is working properly
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