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First Alert 10-Year Battery 2-Pack Battery-operated Combination Smoke and Carbon Monoxide Detector in the Combination Smoke & Carbon Monoxide Detectors department at Lowes.com
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First Alert CO605 Plug-In Carbon Monoxide Detector with Battery Backup , White - Combination Smoke Carbon Monoxide Detectors - Amazon.com
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FIRST ALERT CO605 Plug-in Battery Backup Carbon Monoxide Alarm and FIRST ALERT 9120B Smoke Detector Alarm | Hardwired with Backup Battery - Amazon.com
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