First Alert SA350B Lithium Power Cell Smoke Alarm, with Tamper Proof and Sealed Battery

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 SA350B alarm works exceptionally well by using ionization sensor technology to detect fast flaming fires that spread quickly, such as a grease or wastebasket fires. Also, this alar