Faraday 6234-E Category : Faraday I believe the “E” appendage on the end of the model number means it is a sync-strobe. Brand FaradayModel 6234-EManufacturer SiemensType Alarm (Horn/Strobe)
Simplex 2901-9517 Category : SimplexThis is essentially the AC-powered version of the Simplex 2901-9833.
ADT ADT-PS Category : ADTPersonally, I think that the ADT logo on the head of this smoke is a bit ugly.
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...
