The worlds most popular analog governor in the world, ESD5500E gets revised sales literature.  The ESD5500E series has a variety of speed control units to fit your needs.  Take a look through the specification chart to choose which one is right.  The Product Information Bulletin (aka installation manual) is also updated with the latest specification and shows step-by-step easy installation with graphics and charts.  click HERE to see the series of the most popular speed control unit in the world!

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