Gentex GX90S-4-15/75WR Category : Gentex I also have the version of this alarm that is rebranded by Simplex. Brand GentexModel GX90S-4-15/75WRManufacturer GentexType Alarm (Mini Horn/Strobe)
Simplex 636-820 Category : SimplexThis is the Simplex 4010 user interface which was taken out of a broken 4010.