Lowrance X50 DS 4-Inch Waterproof Fishfinder and Dual-Beam Transducer Dual-Search Skimmer(R) Transducer With Built-In Temp Sensor & Up To 120_ Of Wide-Coverage Fish Detection At 83 Khz High-Contrast 4" Diagonal Film Supertwist Display With 4-Level Grayscale 240Vx160H Pixel Resolution Display With Superior Viewing In Dir