About

International Weighing Systems, Inc., dba IWS Scales and IWS ScaleMaster, has over 40 years experience in the design and manufacturing of commercial scales. In 1984, IWS invented the world renowned ScaleMasterâ„¢ digital weighing system specifically for the sport fishing industry. The ScaleMasterâ„¢ series of digital scales and line testing equipment meets all International Game Fishing Association (IGFA) requirements. The ScaleMaster IIâ„¢ has been the Official Weigh Station Scale of IGFA Offshore Tournaments since 1995.