Raymarine HV-100.02 HyperVision Transom Transducer (200/350/1,200kHz) 6M

The HyperVision 3D transducer provides a multitude of frequencies all within a single housing. Capable of simultaneously supplying RealVision 3D, DownVision, SideVision, and Conical High Frequency CHIRP, this is the only shallow-to-medium depth transducer you'll ever need.