Humminbird 570 DI Dual Beam Sonar Fish Finder Turns on!

Humminbird Fishfinder 570 Down Imaging (DI). 640 vertical Pixels 60 Degrees Dual beam. Power on and everything seems to be functional, but i never used it on the water. It provides picture-like views of structure up to 40m (Down Imaging) and 120m (Sonar).

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