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The powerfully simple 3.5-inch color echo™ 301dv includes both HD-ID™ and Garmin DownVü™ scanning sonar with all-in-one transducer for a nearly photographic sonar view under your boat.
The high-resolution premier 5-inch VGA color echo™ 551c combines powerfully simple operation with exclusive advanced HD-ID™ sonar, with and without a transducer.
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