Lowrance Mark-5x 5-Inch Waterproof Fishfinder 480 x 480 Pixels High-Detail Display, 16-Level Gray Scale Definition. Crisp, Bright White LED Screen and Keypad Backlight. Mark-5x Pro Fishfinder with 5″ Mono Screen, and a 200kHz transom mount transducer List Price: $ 159.00 Price: $ 159.00 More GPS with Customer Reviews