| 摘要 |
PROBLEM TO BE SOLVED: To install a fish-finder at a place suitable for fish finding so that the space in the boat can widely be used, when installed in a small boat or the like. SOLUTION: The attachment has its main body 2 fixed to a fitting seat (g) provided to the float part Bf of an inflatable boat B, and a sensor 4 is fitted at the tip end of an arm 3 extending into water from the main body 2, and a monitor part 7 is fitted to the upper part of the main body 2, so that a signal detected by the sensor 4 is displayed on the screen of the monitor part 7. Further, the arm 3 is made freely rotatable on the axis of an arm support shaft 13, and an intermediate part of the arm 3 is made foldable.
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