Single Beam Fishfinders Optimized for excellent coverage of the bottom.FeaturesNarrow, 20˚ beam for precisionFocused on the bottom and fish in heavy structure or close to the bottomProvides the best image of the bottomCoverage of an area equal to one third of your depthScreenshotThe information provided here has been reproduced courtesy of Hummingbird . Wholesale Marine reproduced this information 07/15/2009. #Fish Finder #Fishing #Product Information