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Photo 1 of First Alert Plug-In w/Battery Back-up Electrochemical Carbon Monoxide Detector

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Photo 1 of First Alert Plug-In w/Battery Back-up Electrochemical Carbon Monoxide Detector

Photo 2 of First Alert Plug-In w/Battery Back-up Electrochemical Carbon Monoxide Detector

Photo 3 of First Alert Plug-In w/Battery Back-up Electrochemical Carbon Monoxide Detector