Lowrance Lowrance has been a leader in marine electronics since it invented the first consumer sonar device in 1957 -- The Little Green Box. In the years since, Lowrance has never wavered from its purpose to push the envelope of innovative performance to help anglers find and catch more fish. Simrad Simrad offers you quality navigation and fishfinding electronics that are easy to use and offer more features for your money. With our strong commitments to quality and reliability, as evidenced by our broad portfolio of industry awards, Simrad will get you there like no one else. B&G B&G has been at the cutting edge of sailing innovation for 50 years. Whether you’re motivated by the thrill of your next race or a passion for cruising, our electronics are designed for you. C-MAP C-MAP has 35 years of experience creating cartography and services for all types of leisure boater and commercial customers. Setting the standard for navigation and situational awareness, C-MAP develops precise, reliable charts with safety and ease-of-use at their core, to satisfy the most demanding of user.