Siemens U-MHU-MCS I believe that this alarm is capable of doing multiple tones. Brand SiemensModel U-MHU-MCSManufacturer SiemensType Alarm (Horn/Strobe)
Gentex GEC24-15/75PWW Category : GentexThis Commander 2 could be used for a purpose other than fire protection due to its missing “Fire” labels.