My dad was given a handheld depth and temperature finder for Christmas, but I want to bring a true fish finder for my BWCA canoe trips. I am looking for suggestions on what is out there. I'm considering weight, portability, effectiveness, usability, functionality, features, and then cost.
This is what my dad was given.
Handheld Depthfinder from West Marine
I throw myself on the mercy of the crowd, what do you think?