Simplex 4903-9105 Category : Simplex I think that this strobe plate actually uses the same housing that the Simplex 4903-9101 uses. The strobe is obviously different. Brand SimplexModel 4903-9105Manufacturer UnknownType Alarm (Strobe Plate)
Fire-Lite BG-12LX Category : Fire-LiteThis is the key-reset, addressable version of the Fire-Lite BG-12.
National Time D900-PHOTO Category : National TimeThis same type of detector, which is manufactured by Apollo, is used by several other companies, such as Gamewell-FCI.
