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BRK Hardwired (with Battery Backup) Ionization Interconnected Combination Smoke and Carbon Monoxide Detector

First Alert BRK Hardwired (with Battery Backup) Ionization Interconnected Combination Smoke and Carbon Monoxide Detector

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Are First Alert model SC9120B smoke and Carbon dioxide detectors interchangeable with BRK model SMICO100-AC smoke and carbon dioxide detectors?


Hi Millvilleguy, thank you for your question. The SMICO100-AC is the new version of the SC9120B, complies with the 8th edition of UL217. - Maria

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