Rugged and reliable sunlight readable LCD display. Water surface temperature built in. Memory saves all settings when powering down. Easy viewing electroluminescent backlight for superior visibility when night fishing. Grayscale display shows fish, bottom, and structure in more detail. Suppression control minimizes interference from other devices. Low power consumption preserves battery life. Depth ranges: 40, 80 and 120 feet. Transducer: High speed transom mount. In dash mounting (3-1/2" dia. hole).