The First Alert SMCO210 combines smoke and carbon monoxide detection in one slim, low-profile unit. The sealed 10-year battery means no battery replacements and no low-battery chirps for the life of the alarm, and Precision Detection technology helps keep cooking from triggering false alarms.

• 2-in-1 protection against both smoke and carbon monoxide
• Sleek, low-profile design blends into walls or ceilings
• 10-year sealed battery - no battery replacements or low-battery chirps for the life of the alarm
• Precision Detection technology reduces cooking nuisance alarms while providing early warning
• End-of-life warning tells you when it is time to replace the alarm
• Color: White

Note: Replace the alarm at the end of its 10-year life. Install per local fire codes.