Cerberus Pyrotronics U-MMT-S75-W This alarm is capable of producing multiple tones. Brand Cerberus PyrotronicsModel U-MMT-S75-SManufacturer SiemensType Alarm (Horn/Strobe)
Space Age AV32+2DCD Category : Space Age ElectronicsThat is an electromechanical horn on the rear of the strobe plate.