The First Alert SMICO110 offers dependable dual protection against fire and carbon monoxide, with a user-friendly, easy-install design. Key safety features include a one-touch test/silence button for functionality checks and false alarm silencing. This advanced alarm complies with current industry standards, reducing false alarms and detecting smoke from synthetic materials. Swift warning is crucial as modern materials burn rapidly, potentially reducing evacuation time. The alarm boasts a built-in, 10-year sealed battery, eliminating the need for replacements or low battery chirps throughout its lifespan. An end-of-life warning signals when it's time to replace the detector.