160x160 pixel, high contrast, Film SuperTwist LCD display produces enhanced target detail and separation. Surface water temperature readings provided automatically from a built-in sensor in the transducer. Patented GRAYLINE separates fish and important structure on or near the bottom from the actual bottom and defines bottom composition/hardness. Advanced Signal Processing (ASP) adjusts your FishMark 160 for the best sonar pictures possible as water conditions change. Screen Dim.: 3.3"Wx3.3"H. 1-year warranty.