Whelen: Howler™ LOW FREQUENCY SIREN & SPEAKER SYSTEM

 Download the Brochure – Howler_Siren_Speaker_System

An added layer of warning for intersections and high risk areas when used with your 100/200 watt siren amplifier. Howler provides deep, low frequency tones, which penetrate other vehicles, alerting drivers and pedestrians of your approach.
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Howler is not a replacement to the vehicle’s primary siren; Howler adds a minimum eight second penetrating burst of low frequency siren sound for use in heavy traffic, intersections or other high ambient noise conditions.