The 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®. Add the power of the One-Boat Network™ to integrate the accuracy of Humminbird GPS charts, unrivaled boat control from Minn Kota®, and reach new depths with wireless Cannon® Optimum™ downrigger control. The APEX Series is a new kind of MFD that will take you fishing to a new level. This CHO (Control Head Only) model is the perfect pairing for anglers looking to select their own transducer, such as a Stainless Steel thru-hull option (SSTH 14 HW MSI+) or simply to add an additional display to an existing Humminbird network.