Wheelock CWHIT-24 Category : Wheelock This is an interesting single-gang ceiling-mount strobe. Brand WheelockModel CWHIT-24Manufacturer WheelockType Alarm (Strobe)
Simplex 4904-9139 Category : SimplexI believe that this strobe plate was designed to be used with bells, such as the Simplex 2901-9333.
Simplex 2901-9517 Category : SimplexThis is essentially the AC-powered version of the Simplex 2901-9833.
