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  2. Rumbler siren - Wikipedia

    en.wikipedia.org/wiki/Rumbler_siren

    Rumbler siren. A Rumbler siren is a type of emergency vehicle siren used primarily in the United States.Developed in 2007 by Federal Signal Corporation, and sounding at a low-frequency level, it is designed to be heard by motorists who may otherwise be unable to hear high-frequency sirens due to ambient noise, such as urban traffic.

  3. Whelen Engineering Company - Wikipedia

    en.wikipedia.org/wiki/Whelen_Engineering_Company

    The Whelen Engineering Company is an American corporation that designs and manufactures audio and visual warning equipment for automotive, aviation, and mass notification industries worldwide. Founded in a Deep River, Connecticut garage in 1952, [ 1 ] Whelen has become a provider of warning lights, white illumination lighting, sirens, and ...

  4. SMART Modified Tour - Wikipedia

    en.wikipedia.org/wiki/SMART_Modified_Tour

    The NASCAR Whelen Southern Modified Tour was established in 2005, taking over what had formerly been the Southern Modified Auto Racing Tour (SMART) after the collapse of the organization as part of the breakup of the American Speed Association in late 2004. Whelen Industries, who sponsors the NASCAR Whelen Modified Tour agreed to sponsor the ...

  5. Thompson Speedway Motorsports Park - Wikipedia

    en.wikipedia.org/wiki/Thompson_Speedway_Motor...

    UTC-5 (UTC-4 DST) Owner: Donald and D.R. Hoenig: Operator: Donald and D.R. Hoenig: Broke ground: September 21, 1938: Opened: May 26, 1940: Former names: Thompson Speedway (1940–1970) Thompson International Speedway (1971–1977) Major events: NASCAR K&N Pro Series East: King Cadillac GMC Throwback 100 NASCAR Whelen Modified Tour NASCAR Whelen ...

  6. Federal Signal Modulator - Wikipedia

    en.wikipedia.org/wiki/Federal_Signal_Modulator

    The Modulator has a similar setup to the Whelen WPS 2700, 2800, 2900, and OmniAlert omnidirectional speaker arrays. The Whelen arrays have single driver cells, [3] while Modulators have multi-driver cells. The American Signal I-Force siren, which uses stacked, elliptical speaker cells that provide omnidirectional sound output, is also similar ...

  7. Litter-Robot 3 vs 4: Which is worth your money? - AOL

    www.aol.com/litter-robot-3-vs-4-113140464.html

    Litter-Robot 3 Connect vs 4: Appearance. Both Litter-Robots feature a modern design that looks (and smells) ten times better than any traditional box. While they do take up a fair bit of space ...