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First Alert Brk 10-Year Battery Hardwired Ionization Sensor Smoke Detector in the Smoke Detectors department at Lowes.com
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SITERLINK Smoke Detector Hardwired, Smoke Alarm Interconnected with Battery Backup, Photoelectric Fire Alarms Smoke Detectors with LED Lights, UL217 Listed Fire Alarm for House, GS517 - Amazon.com
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SITERWELL Hardwired Interconnected Smoke Detector, Photoelectric Smoke Alarm with 9V Backup Battery, Fire Alarm with Test/Silence Button, GS517, 2 Packs - Amazon.com
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Kidde 10-Year Worry Free Smoke & Carbon Monoxide Detector, Lithium Battery Powered with Photoelectric Sensor and Voice Alarm 21030866 - The Home Depot
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Photoelectric Smoke Alarm AC power DC battery backup Wholesale retail Smoke Alarm Fire Security System [DG-321] - $9.00 : China top brand burglar and fire alarm systems, New technology burglar and fire
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Kidde Hardwired Smoke Detector Alarm with Light and Battery Backup, Battery Included, Interconnectable - Commercial Lighted Exit Signs - Amazon.com
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