Lowrance has been a world leader in the design, manufacture and marketing of high-quality sportfishing SONAR and Global Positioning System (GPS) mapping instruments for more than 50 years.  In 1957, Lowrance introduced the world's first sportfishing SONAR instruments capable of locating individual fish.  Ever since, Lowrance has been a leader in the fish finder industry.  They continue to be a pioneer of fishfinder technology introducing  this year its new side viewing sonar technology option for its powerful line of HDS (High Definition System) multifunction displays.