Navico’s StructureScan 3D Transom Mount transducer provides images to your compatible chartplotter when paired with the Structure Scan 3D Black Box. View underwater contours and structure to create a high-resolution, 180 degree, 3D view beneath the boat. StructureScan 3D is powered by a dual beam sonar technology that not only produces picture-like, three-dimensional views of underwater structure and bottom contours, but it also boosts the performance of two-dimensional Downscan and StructureScan HD imaging for a better image overall.