Raymarine's B744V offers excellent transducer performance from a single thru-hull package. This can be paired with a high speed fairing (in image but sold separately.)
Technical Specifications:
Material: Bronze.
Maximum Depth: 1,200ft.
Frequency: 50/200 KHz.
Beam Width: 12-45 degrees.
Records: Depth, Speed & Temperature.
Hull Material: Fibreglass or wood.
Cable Length: 30ft.
Deadrise Angles: Up to 24 degrees with fairing.