Simplex 2901-9838 Category : Simplex This is a spare cover for the 2901-9838 horn which I received NIB. It is somewhat noteworthy that the Simplex logo is white and not black, as is typical with these horns. Brand SimplexModel 2901-9838Manufacturer FaradayType Alarm Cover
Ademco 532 Category : AdemcoThe only place I’ve ever seen an Ademco re-branded BG-10 has been on this particular unit.