Fire Alarm Motor Siren (Big)
Big fire sirens are powerful, loud electromechanical alarms (often 110-120+ dB) designed for wide area warnings in factories, cities, or mines, featuring durable metal construction, high voltage needs (AC 110/220V), and sometimes strobe lights, with models like the MS-490 providing powerful, penetrating sound for industrial or civil defense alerts, though smaller battery-powered ones exist for buildings.
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