New Acquisition! Family Gard FG777C. This unit is based on the BRK 79R and was the successor to the FG777, This specific unit is from 1983.
Nice! You sure got the FG777’s successor quickly after first getting the former!
I find it interesting that the model number of the horn is molded into the outside of the housing for it, & that it’s not the exact same model that most BRK/First Alert/Family Gard detectors use (which is supposedly the “H58-92-XX”).
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