Garmin Echo 551Dv Sonar -
The user-friendly Garmin echo 551DV Sonar clearly reveals what's under the water, helping you catch more fish. Garmin DownVü™ produces clear and precise HD-ID™ sonar images and a nearly photographic sonar view of fish and structure under your boat. Images are clearly shown on a 5"-diagonal 256-color display with 640 x 480 VGA resolution. Garmin Smooth Scaling™ technology keeps you from losing sight of sonar history as the unit changes depth ranges. Sonar history rewind allows you to look at your past sonar, ensuring you won't miss anything. 500 watts of transmit power (RMS). Includes an all-in-one transducer for DownVü and 77/200kHz (also supports 50/200kHz with optional transducer). Comes with a quick-release swivel mount and FREE mounting kits for transom and trolling motors.