There ’s nothing more sticky than dropping a leaden body into a misleadingly shallow river . fisher do n’t have this trouble , because they only dispatch fish , and because deepness finder are old hat to them . Still , this wrist - climb one catch my attention . The Humminbird Smartcast RF30 differentiate the sensors from the display , letting you attach a sonar transducer to your fishing line and see result right on your wrist display .
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