320 vertical pixels for best target separation to separate fish and structure from the bottom. Pro-preferred precision knob control for quick adjustments. Water surface temperature and trolling speed. 16 level grayscale Liquid Paper Graph display technology reveals underwater detail with paper chart clarity. Exclusive co-axial dual beam transducer technology (600' model) combines wide and narrow coverage without losing bottom detail. RTS Real Time Sonar window instantly displays the action in the transducer cone with up to 30 sonar updates per second. 500 watts (RMS) output power punches through weeds and thermoclines to capture all the detail. Big 5-3/4" diagonal high contrast FSTN display. Gimbal Mounting standard or optional in-dash mounting. Legend 3000: Depth capability: 600'. Sonar: 200kHz dual beam. Sonar coverage: 24 degrees and 18 degrees @ -10db. Legend 3000 Deep: Depth capability: 2000'. Sonar: 200 & 50 kHz dual beam. Sonar Coverage: 20 degrees and 74 degrees @ -10db.