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First Alert Smoke Alarm$49.94
The First Alert SM310 10-Year Sealed-Battery Dual-Sensor Smoke Alarm meets the latest industry standards and features dual smoke sensors to provide reliable protection from fast-flaming and slow-smoldering fires. And the 10-year lithium battery means no battery replacements for a ...The First Alert SM310 10-Year Sealed-Battery Dual-Sensor Smoke Alarm meets the latest industry standards and features dual smoke sensors to provide reliable protection from fast-flaming and slow-smoldering fires. And the 10-year lithium battery means no battery replacements for a decade – the end-of-life warning lets you know when it is time to replace the alarm.
No more low-battery chirps and multiple battery replacements!