First Alert 10-Year Lithium Battery Ionization Sensor Smoke Alarm

First Alert is the category leader in fire safety and delivers reliable life safety products that help our consumers protect what matters most through innovation and performance. Working smoke alarms cut the risk of dying in a home fire by 50% and that's important because a home structure fire was reported every 86-seconds. The faster you know about a fire, the faster you can start moving your family outside. The 9120LBL battery powered alarm works exceptionally well by using ionization sensor technology to detect fast flaming fires that spread quickly. Sources of these fires include cooktop grease or wastebasket fires. Plus, this alarm features a pre-locked, 10-Year lithium battery, no need to change batteries for the life of the alarm. This First Alert 9120LBL 10-Year Smoke Alarm is an essential product in protecting your home and family.|10-year lithium battery backup|Latching alarm indicator - remembers which unit initiated an alarm latching alarm indicator - remembers which unit initiated an alarm latching alarm indicator - remembers which unit initiated an alarm latching alarm indicator - remembers which unit initiated an alarm latching alarm indicator - remembers which unit initiated an alarm latching alarm indicator - remembers which unit initiated an alarm Smart Technology - helps reduce the number of nuisance alarms|Perfect mount - allows for easy alignment of alarm|Single button test/silence