• SeaBis Electrolysis Corrosion Prevention Systems - SeaBis Electrolysis Corrosion Prevention Systems are the first Do It Yourself systems to detect and eliminate stray current and prevent electrolysis corrosion damage to boats and vessels. Systems are determined by the number of engines and battery banks the boat or vessels have and whether the boat is isolated or non isolated. Pro Systems are available for commercial vessels See http://www.seabis.net product list for details