SMOKE DETECTION: Model 20SD10 detects smoke over 25% faster*; sounds a loud 85-decibel alarm with red LED light for clear visual warnings; suitable for homes 10-YEAR BATTERY OPERATION: Built-in 10-year battery powers the alarm continuously; eliminates low-battery chirps, saves up to $40 over the life of the alarm in battery replacements, and includes a 10-year limited warranty** from date of purchase REDUCED FALSE ALARMS: Uses advanced sensing technology that helps distinguish between real smoke and everyday cooking or steam; helps reduce false alarms while maintaining quick, accurate detection when smoke is present TESTED FOR SAFETY & PERFORMANCE: Rigorously tested to meet UL 217 10th Edition and FCC standards; designed to help ensure reliable performance and compliance with recognized safety requirements BUILT FOR HOMEOWNERS AND PROFESSIONALS: Designed for those who prioritize dependable, code-compliant detection; supports safety goals for homeowners, property managers, contractors, and professionals seeking long-term home safety assurance