Eagle 350C mounted portable on PVC . and powered by 12V 7 or 3 1/2 gel cell. I trust it . I just wish they still made it. Since I mostly chase bluegill on smaller waters like strip mines it really helps . I also catch some big ones where nothing shows. They will come from a long way outside the cone in gin clear water . I don't honestly know if mine would ID a fish setting on the bottom though??? .