Experience the next level of fire safety with the Kidde Hardwired Smoke Carbon Monoxide Detector, 10-Year Battery Backup, Interconnectable LED Warning Light Indicators, model 30CUA10. This smoke CO detector has enhanced sensing technology that reduces false alarms often caused by cooking and sends fast alerts that help give your family more time to get out safely. To detect carbon monoxide, an electrochemical sensor is used. This alarm offers a modern 5-inch design ideal for all living spaces such as living rooms, hallways, kitchens, bedrooms. Comprehensively tested and designed to the latest UL standard for safety and reliability, the 5-inch smoke CO alarm is powered by 120V AC wiring with a 10-year built-in lithium battery, so you never have to change a battery for the life of the detector (not a battery performance claim). In addition, it?s self-testing and easy to install with the included twist-and-click mounting bracket. This Kidde combination alarm is equipped with end-of-life notifications that will beep to remind you it?s time to replace it at the of its 10-year lifespan. Meets requirements of 9th Edition UL 217, UL 2034 4th Edition, FCC, and CSFM. 2IN1 DETECTION Alerts you to both smoke carbon monoxide CO using a single, costeffective device. HARDWIRED 10YEAR BATTERY BACKUP Operates on 120V AC wiring installed in the ceiling. No battery changes for 10 years saves up to 40 over the life of the detector. ENHANCED SENSING TECHNOLOGY Reduces false smoke alarms often caused by cooking. Comprehensively tested to meet the latest UL standards, meets UL 217 9th Edition, UL 2034 4th Edition, FCC standards. INTERCONNECT CAPABILITY When one alarm sounds, they all sound, so you can get out faster. Different models offer different interconnection options and requirements. See User Guide for more info. SELFTESTING ALARM Internal components ensure alarm is always operating as expected. Not a substitute for a manual push test, perform a button test once per week to verify alarm operation. 3 LED NOTIFICATIONS LED lights indicate alarm status, green normal operation, amber operating error, red smoke or carbon monoxide detected a loud 85decibel alarm will sound. TEST HUSH BUTTON Makes it easy to test the 5inch combination detector and silence false alarms, should they occur. 10YEAR WARRANTY Begins when alarm is powered on. If that date is unknown, it should be assumed that alarms should be replaced. 10yr limited warranty on alarm, not a battery performance claim.