Using down imaging technology the Humminbird PiranhaMax 197C DI Color Fishfinder gives you a fish eye perspective of the aquascape below your boat, helping you fill your creel. DualBeam sonar that allows you to toggle between wide views, and more detailed narrow representations with a peak to peak power of 2400W. This provides a 3D image down to 320' or a 2D image to 600', giving an accurate view of the bottom to help locate fish holding structures. The 3.5" LED-backlit display on a quick release mount gives you an easy to read color image, so you can easily interpret the structure below. A built-in temperature sensor keeps you informed of surface temperature, so you can tell if the fish might be interested in feeding or not.