The First Alert 0827B 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.
No Battery Replacements for the Life of the Alarm: The First Alert 0827B 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 a smoke detector system with a sealed battery provides the ultimate in longevity and security, preventing possible lapses in protection.
Tamperproof Design Prevents Battery from Being Removed: Thanks to a tamperproof design, the batteries in the First Alert 0827B Sealed Ionization Smoke Alarm can’t be removed. This smoke detector complies with current 10-year legislation in states/cities where required, making it a great addition for any number of properties where sealed/tamperproof alarms are required.
Easy-to-Use Features: If the alarm goes off accidentally, simply press the silence button to stop the noise. The same button allows you to test the fire alarm to ensure it is working properly. An LED indicator blinks to let you know the smoke detector is receiving power and working regularly. When the alarm reaches the end of its service life, it will chirp once a minute to let you know the battery is almost depleted. This ionization smoke alarm features a Perfect Mount system for easy alignment and installation.