Humminbird 408120-1 Fishfinder 597ci HD DI Combo (Discontinued by Manufacturer) Chartplotter/fishfinder with high-resolution, 5-inch, LED-backlit color display, DualBeam sonar with 4000Watts PTP power output Dual-beam Switchfire Sonar with precision 20-degree beam and wider 60-degree beam, Down Imaging for seeing below the boat Real-time Sonar always updates at the fastest rate possible, shows returns from the bottom, structure, and fish that are within the transducer beam Included UniMap covers the continental U.S. coastline, inland lakes, and rivers at 30 meters per pixel resolution