Working with Lowrance HDS Gen2 and HDS multifunction displays - the new StructureScan HD sonar imaging system delivers greater resolution and wider range for enhanced underwater images. Easily networks via Ethernet with up to three HDS displays for sonar imaging and waypoint sharing. Features the dedicated transducer array with the Lowrance innovation of down-looking imaging for the clearest, truest picture possible. Plug-and-play performance processing module delivers the most horsepower in fishfinding imaging. Works separately and in tandem with the built-in Broadband Sounder of HDS displays and existing transducers. Offers the exclusive TrackBack feature for simultaneous scroll-back of sonar and chartplotter "history" to set waypoints, and share them across the network. Multiple choices in imaging transducer mounting locations. Fully-waterproof, plug-and-play processor module. The StructureScan HD fully-waterproof module connects to a 10-17 VDC power supply, and via simple plug-and-play Ethernet cables, networks with up to three HDS displays for sonar imaging viewing with independent control. Or, easily network with other HDS add-on options, such as Lowrance Broadband Radar or LWX-1 Sirius satellite weather and radio antenna. New, enhanced imaging transducer. Low profile, low-drag design with built-in water temp sensor, made for multiple mounting locations v transom, transom step or jackplate. For transoms, there's a stainless-steel mounting bracket with a kick-up feature for water hazard strikes. Damage the bracket, and you simply replace it (not the entire transducer) inexpensively. StructureScan HD thru-hull transducer options include two designs in plastic or bronze -- including a dual thru-hull transducer kit for boats with high deadrise hulls.