Gentex GOS24-110WR Category : Gentex This alarm is capable of doing multiple tones. Brand GentexModel GOS-24110WRManufacturer GentexType Alarm (Horn/Strobe)
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.
Simplex 4904-9139 Category : SimplexI believe that this strobe plate was designed to be used with bells, such as the Simplex 2901-9333.
