2-in-1 DETECTION: Model 30CUAR-V detects both smoke and carbon monoxide with advanced sensing technology engineered with over 25% faster smoke detection*; features a red LED light for clear visual notification suitable for homes HARDWIRED WITH AA BATTERY BACKUP: Connects directly to 120V AC power and includes 2 AA alkaline batteries for backup operation to help ensure continuous detection during power outages; includes a 10-year limited warranty** 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 when one detects danger, all connected units sound together; helps ensure everyone in the home is alerted to potential hazards*** 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