Resideo First Alert Sealed Ionization Smoke Alarm

0827B 10-YEAR SEALED LITHIUM BATTERY IONIZATION SMOKE ALARM The First Alert 0827 Sealed Ionization Smoke Alarm features a 10-year sealed lithium battery, eliminating the need for battery replacements during the lifetime of the alarm. This fire detector with ionization sensor has a tamperproof design, a mute feature, a power LED and alarm indicator, end of life warning, and single test button. Includes smoke alarm status LED indicator, end-of-life signal, and test/silence button Smoke detector with built-in 10-year 3-volt lithium power cell Ionization sensor for efficient smoke detection Complies with current 10-year legislation in states/cities where required Tamperproof design prevents batteries from being removed Features No Battery Replacements for the Life of the Alarm The First Alert 0827 Sealed Ionization Smoke Alarm features a built-in 3-volt lithium power cell that lasts for 10 years, eliminating the need for battery replacements for the life of the fire alarm. Using