Help protect your home and family with the Kidde 20SA10-V Hardwired Smoke Detector with 10-Year Built-in Battery and Voice Alerts. Designed to detect smoke over 25% faster*, this alarm helps provide timely warnings when every second counts. It emits an 85-decibel alarm and a red LED light to clearly signal smoke presence, while voice alerts announce “Fire” to help occupants respond quickly. The built-in 10-year backup battery helps provide continuous detection without low-battery chirps and helps save up to $40 over the life of the alarm. Advanced sensing technology helps reduce false alarms triggered by cooking or steam. Interconnect capability allows multiple compatible Kidde alarms to sound simultaneously, helping alert everyone in the home to potential danger.*** Tested to meet UL 217 10th Edition and FCC standards, this smoke detector delivers dependable, code-compliant detection, making it suitable for homeowners, property managers, contractors, and professionals seeking long-term home safety assurance. *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.