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First Alert Light Guide

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Illustration of printers, routers, cameras, doorbells, chargers, and status indicator lights
Model warning: Do not assume every First Alert device uses the same light codes. Always choose the closest exact model.

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Model First Alert Alarm LED Indicators light guide Smoke & CO Alarms · model light summary Guide First Alert Red or Green Light Flashing With No Sound Red or green · Blinking or steady with no sound