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FIRST ALERT BRK SC9120FF Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 1 pack , White - Amazon.com
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First Alert Battery Powered SCO500B Wireless Interconnected Photoelectric Smoke and Carbon Monoxide Combo Alarm with Voice and Location - Combination Smoke Carbon Monoxide Detectors - Amazon.com
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Smoke and Carbon Monoxide Detector Combo Unit Battery Operated Smoke Co Alarm with Self Test Button - Amazon.com
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First Alert BRK Brands Hardwired Combo Smoke and Carbon Monoxide Alarm with 10-Year Battery Backup - SC9120LBL
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First Alert 10-Year Battery-operated Combination Smoke and Carbon Monoxide Detector in the Combination Smoke & Carbon Monoxide Detectors department at Lowes.com
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