We know where the fishes are hiding use your smarphone to find outdeeper fish finder is the first portable wireless sonar compatible with over 6000 ios and android devices especially designed to track fish and monitor depth water temperature river bed contours and many more parametersfind fishhigh precsion sonar enables the tracking of most fish speciessee depthdeeper fishfinder sonar comes with sufficient power to penetrate depths from 15 50 cm to 130 40 m in both fresh and sa