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3. Application methods
1) Toss the sensor into water, drag it at a very slowly
and stable speed. It will display information of water
under the sensor, including water depth, bottom contour,
and fish location.
2) Toss the sensor into water, guide it to a desirable
position and let it undisturbed. It will float on water and
monitor submarine news in a real-time method.
Information will be automatically updated on the screen
once fish enter the sensor detection range.
Setting of the Handheld Host
1. Keys on the host/display unit
