This thru-hull transducer works with the StructureScan® 3D module (sold separately) to create a high resolution, three dimensional view of underwater terrain and fish-holding structure. Immediately see where fish and structure are located in relation to your boat, with a picture-like view you can easily pan, tilt, and rotate for the perfect perspective. The stainless steel transducer can be mounted flat, or with the included fairing block. Hulls with a steep or dynamic deadrise may require our dual thru-hull transducer kit (sold separately), which includes separate port and starboard transducers to ensure wide-angle coverage to both sides of the hull.