If you don’t want to spend a lot on a fish finder, and you’re interested only in basic sonar functions, the PiranhaMax series from Humminbird has exactly the units that you’re looking for. The 197c model is actually the most basic fish finder made by Humminbird. But even so, it offers quite an advantage when you’re on the water.
It’s a small unit, but with a TFT color display, 3.5 inches in diagonal, with a 240H X 320V pixel matrix. The screen is LED backlit which