Simplex 2901-9333 Category : Simplex This bell is compatible with some of Simplex’s strobe plates, such as the Simplex 4904-9139. Brand SimplexModel 2901-9333Manufacturer FaradayType Alarm (Bell)
Space Age A32-BL-SFXC-TJ24D-HA24D+HA24D Category : Space Age ElectronicsI’m pretty sure that the horn on this unit is made by Space Age Electronics. Otherwise, it’s probably a Wheelock...
