Tempest Series electro-mechanical sirens are the workhorses of ASC outdoor warning systems.  These are the tone-only warning sirens used to alert the public to severe weather, fire station calls, industrial accidents; any event that requires the public to take immediate action to secure their safety.  Tempest mechanical sirens generate loud, unmistakable tones that provide and immediately recognizable warnings to the public.  ASC manufactures a focused line of outdoor mechanical warning sirens.  We manufacture the loudest siren built in the United States.  While volume alone does not constitute an effective warning, louder sirens do provide warning coverage across larger areas.  This makes our loudest siren the most efficient way to warn large, up to six-mile diameter, areas.  Our other sirens are more focused, effective, and appropriate for smaller areas and municipalities with higher population densities.  No matter the community or facility, ASC Tempest sirens are the most effective way to warn people of an emergency.