Intersection-Clearing System • Improves emergency vehicle operator safety. • Produces penetrating/vibrating low frequency sound waves. • Interacts with most 100/200-watt emergency vehicle siren amplifiers. • Eight second safety timer provides automatic tone shutdown. • Highly effective in dense urban environments with heavy vehicle traffic. • Three-year warranty • Enabled via any emergency vehicle steering wheel horn ring. The Rumbler®, intersection-clearing system, demonstrates the long-standing commitment of Federal Signal to continue as the technological leader in audible warning and operator safety. Improves Intersection Warning Effectiveness The Rumbler introduces a revolutionary new concept to audible warning through its ability to interact with most 100/200-watt siren amplifiers and provide secondary, low frequency duplicate tones. Low frequency tones have the distinct advantage of penetrating solid materials allowing vehicle operators and nearby pedestrians to FEEL the sound waves. Secondary System with Built-in Safety The Rumbler system senses the primary siren tone signal, and reduces the signals’ frequency by 75%. It then amplifies the sound through a pair of high output woofers. The system’s timer allows the tone to sound for eight seconds, providing highly effective warning at hazardous intersections, and then automatically shuts off. The Rumbler is particularly effective when used in dense urban environments with heavy vehicle and pedestrian traffic. A complete Rumbler intersection-clearing system consists of an amplifier, with built-in timer and two subwoofers. Vehicle specific mounting hardware is ordered separately. This system can be paired with most 100/200-watt emergency

Amplifier Pair of Woofers Timer Select compatible primary siren system (see below right) RUMBLER-3 Siren Amp, Rumbler, secondary warning system, 12V, low frequency tones, hardware kit Mount kit, pair of brackets and hardware Ford Vehicles RB-EXPD08 Ford Expedition vehicles, 2008+ RB-FPIU13 Ford Police Interceptor Utility, 2013-2015 Chevy Vehicles RB-IMP08 Chevrolet Impala police package vehicles, 2008-2017 RB-TAHO08 Chevrolet Tahoe/Suburban vehicles, Dodge Vehicles Specifications Input Voltage Input Current, Operating Polarity Standby Current Operating Temperature Range Frequency...