first alert 0827b smoke alarm, 3 v, ionization sensor, 85 db, white

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

• Owners/User Manual https://assets.unilogcorp.com/187/ITEM/DOC/FIRST_ALERT_100038798_Owners_User_Manual.pdf