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)
Simplex 2901-9840 Category : SimplexBesides its appearance, this horn is just like the more common Simplex 2901-9838.
Notifier 34-24 Category : NotifierThis is basically just a Wheelock horn with a Notifer sticker slapped onto it.