Simplex 4904-9101 Category : Simplex This is the same strobe that is found on the Simplex 4903-9101 strobe plates. Brand SimplexModel 4904-9101Manufacturer SimplexType Alarm (Remote Strobe)
Space Age A32-BL-SFXC-TJ24B-0000 Category : Space Age ElectronicsThis alarm came with a Wheelock EH-EL1 mounted onto it.
GE 521BXT Category : GEI think that this smoke detector might be intended for use in security systems.
