HDS 7 GPS / Sounder HDS-7m Multifunction GPS Chartplotter Excellent viewing detail in a large 16.3 cm/6.4 in., 480V x 640H pixel Full VGA colour display format. Brighter SolarMAX™ PLUS display for superior sunlight and wider-angle viewing. Pure-white LED screen/keypad backlighting fully adjusts to zero-dim for night viewing.