MY mom bought a used pontoon and it has a portable Fishin buddy sidefinder and thats all it says on it. Its pretty old but i think it works. I was just wondering if these were any good or bad. Thanks

I believe those were made by bottomline.  The pixel count on those things was terrible. I had a friend that had one.  They were barely good enough to show bottom depth.  His broke and it was still fairly new.