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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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What is the orange wire for? It looks like some kind of an antenna?


The orange wire is for interconnecting with other hard wired detectors. You will need to have a three wire cable between detectors for this to work.

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