(Read Description) Red light, Green Light!
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YouTubeWINBOI
(Read Description) Red light, Green Light!
The blinking red light on a First Alert SC9120B/FF means the alarm needs to be reset by pressing the Test/Silence button. The green light means there is AC Power connected to the alarm. I am surprised that the red light on the alarm was in sync with the music! Try it! Listen for the bell and look at the light. This video was not recorded at my ...
294.3K viewsSep 25, 2022
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Jump to key moments of First Alert Safe Blinking Red-Light

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