- Certifications
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Along with the invention Variable Speed Fire Pump Controllers and subsequent UL Listing in 2003, Master became the first to be FM Approved in 2008. At that time Variable Speed Fire Pump
Controllers were still a new product in the market, and FM did not yet have an approval process for Variable Speed. Since we
had the best knowledge of Variable Speed in the world, FM invited Master to use their expertise to help create the standard used today.