NEW System Sensor MA12/24D Multi-Alert Sounder Fire/Burglar Alarm

System Sensor MA12/24D Multi-Alert Sounder Fire/Burglar Alarm Red

Wheelock 12/24 Multi-Tone Red Fire Alarm Horn

System Sensor MA12/24D Multi-Alert Sounder 12/24VDC Continuous/Warble Tone

Eaton Wheelock 34-24 Fire Alarm Horn Red

pyrotronics HDC-24 (Wheelock 34T) Mechanical Fire Horn (TESTED)

NEW System Sensor MA12/24D Multi-Alert Sounder Fire/Burglar Alarm

Ademco Red UFH-12 24VDC 0.125A Fire Alarm Horn Mechanical Alarm Device MFG. CO.