Help protect your home and family with the Kidde 30CUD10 Smoke and Carbon Monoxide Detector with a built-in 10-year battery. This 2-in-1 alarm provides comprehensive coverage by detecting smoke over 25% faster* and monitoring carbon monoxide. It features an 85-decibel alarm with a red LED light for clear visual notifications, making it suitable for homes. The built-in 10-year battery eliminates low-battery chirps and saves up to $40 over the alarm’s lifetime in battery replacements. The alarm also includes a 10-year limited warranty** starting from the date of purchase, offering long-term, reliable detection. Advanced sensing technology helps reduce false alarms caused by everyday cooking or steam while maintaining accurate detection of real threats. Tested to meet UL 217 10th Edition, UL 2034 5th Edition, and FCC standards, this Kidde alarm is designed for homeowners, property managers, contractors, and professionals seeking dependable, code-compliant home safety. *29% faster average smoke detection based on internal testing of smoldering wood fires for Kidde 9th Edition vs. leading competitor 8th Edition products. **10-year limited warranty on alarm. Not a battery performance claim.