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Smoke Alarm - First Alert SA90 Teardown

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Front of First Alert Model SA90.
Front of First Alert Model SA90.
Backof First Alert Model SA90.
Back of First Alert Model SA88.
Tag on Back of First Alert SA90.
Tag on the Back of the First Alert SA90.
Inside the First Alert SA90.
Inside the First Alert SA90.
Componet Side PC Board for the First_Alert SA90.
SA90 Component Side of the Printed Circuit Board (PCB).
Back of First Alert SA90 PCB.
Back View of the Printed Circuit Board for the First Alert SA90.

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