2-IN-1 DETECTION: Detects both smoke and carbon monoxide with advanced sensing technology engineered with over 25% faster smoke detection*; features a loud 85-decibel alarm with red LED light for clear visual and audible warnings; suitable for homes HARDWIRED WITH 10-YEAR BATTERY BACKUP: Model 30CUA10-V operates on 120V AC power with 10-year built-in battery backup; helps save up to $40 over the alarm’s life in battery replacements; 10-year limited warranty** starting from date of purchase VOICE ALERTS: Provides clear voice messages that announce the specific hazard; says “Fire” when smoke is detected or “Warning, Carbon Monoxide” when CO is present; helps occupants respond quickly and take the right action TESTED FOR RELIABILITY: Tested to meet UL 217 10th Edition, UL 2034 5th Edition, and FCC standards for performance and safety; enhanced sensing technology helps reduce false alarms by distinguishing real smoke from everyday cooking or steam INTERCONNECT CAPABILITY: Connects with other Kidde alarms so that when one detects danger, all interconnected alarms sound together; improves whole-home safety by helping ensure everyone is alerted promptly*** 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