Designed for saltwater use or downrigger tracking. Sharp 5" diagonal high-contrast Film SuperTwist Display with 480 x 480 pixel resolution and newly advanced white LED backlit screen and keypad. 16 level Grayscale. Depth penetration to 2,500 feet with 4000 watts of Peak to Peak power. Other features include: Fish Reveal, Hyperscroll, Grayline, Programmable "Windows", Advanced Signal Processing (ASP), Advanced Fish Symbol ID and Fish Track. Comes with a Dual Frequency (50/200 Khz) Hi-Speed Skimmer Transducer with built in temperature and separate transom mount Speed Sensor. Back-up memory saves customized settings. Completely sealed and waterproof. Full one year manufacturer's warranty. Instructional videos are available on some Lowrance models. Price shown is the manufacturer's minimum allowed advertised price. It is not our In Store selling price. Please call or e-mail us for that price.