Thisplastic transom mount performs well in deep water and provides exceptional bottom and water column detail. As a great performing 1kW transom mount, this transducer has a maximum depth of 3000', an operating frequency of 42 to 65kHz and 130 to 210kHz, a beam width of 16 to 25 Degree or 6 to 10 Degree, and mounts on a 3 to 21 Degree transom. Transducer kit comes with installation instructions. Follow the instructions carefully to avoid damaging your boat. 12-pin connector Compatible with GPSMAP 7607xsv-7616xsv, GSD 25 premium sonar module