The First Alert 0827B sealed ionization smoke alarm features a 10 years sealed lithium battery, eliminating the need for battery replacements during the lifetime of the alarm. This smoke detector with ionization sensor has a tamperproof design, a mute feature, a power LED, alarm indicator, end of life signal and single test button.
- Smoke detector with built-in 3 V lithium power cell
- Ionization sensor for efficient smoke detection
- Tamperproof design prevents batteries from being removed
- Incorporates smoke alarm status LED indicator, end-of-life signal and test/silence button
- No battery changes for the life of the alarm
- Mute button mutes unnecessary alarms immediately, also tests alarm function with same button
- End of life warning notifies you when the alarm needs to be replaced
- Emits T3 pattern
