The Humminbird APEX 19 MEGA SI+ CHARTPLOTTER CHO provides the clearest sonar imaging on the sharpest multi-function display that anglers have ever seen. Industry-leading MEGA Imaging+ and Dual Spectrum CHIRP sonar come standard, with even more performance from a dedicated sonar channel for accessory 2D CHIRP transducers up to 2kW. See it all clearly with an 18.5" Full-HD touchscreen that provides a customized display of information from advanced network options like NMEA 2000®, HDMI In/Out, WiFi and Bluetooth®.