Help protect your home with the Kidde 30CUAR-V Hardwired Smoke and Carbon Monoxide Detector with AA Battery Backup andVoice Alerts. This 2-in-1 alarm detects smoke over 25% faster*and features an 85-decibel alarm with a red LED light. The alarm connects directly to 120V AC power and includes two AA alkaline batteries for backup operation, helping ensure continuous protection during power outages. Voice alerts announce the hazard clearly, saying “Fire” for smoke or “Warning, Carbon Monoxide” for CO, allowing occupants to respond quickly. Advanced sensing technology reduces false alarms caused by cooking or steam while maintaining accurate detection. Interconnect capability allows multiple Kidde alarms to sound together, helping ensure everyone in the home is alerted.*** Tested to meet UL 217 10th Edition, UL 2034 5th Edition, and FCC standards, this unit includes a 10-year limited warranty** from the first power-on, offering long-term, code-compliant protection for homeowners, property managers, and professionals. *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. ***Different models offer different interconnection options and requirements. Check the User Guide for more info.