First Alert 2-Pack Battery-operated Ionization Sensor Smoke Detector Item #43950 | Model #0116518 89 Uniform Energy Factor (UEF)

89 Uniform Energy Factor (UEF)

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First Alert 2-Pack Battery-operated Ionization Sensor Smoke Detector Item #43950 | Model #0116518 89 Uniform Energy Factor (UEF)These First Alert battery operated smoke alarms are designed to be easy to install, and easy to maintain with a hinged cover for easy battery replacement. The alarms are equipped with an ionization sensor designed to reliably detect particles from fast flaming fires. 9 Volt battery operated smoke alarm Hinged cover for easy battery replacement Test button helps ensure your alarm is working properly Batteries should be changed every six months