Someone was telling me that there is a fish finder that has the transducer on an arm that hangs over the side of the boat, sort of an all in one unit. Does such a thing exist?

http://fishfinders.factoryoutletstore.com/cat/3350/Fishin-Buddy.html

Cool. That is exactly how he described it. Anyone ever used one?

Friend of mine has one..works better than expected..uses AA battery's...Good for a rental skiff..

I have the basic model made by Bottom Line before Hummingbird took over. Not great graphics, but, it displays depth, water temp, contour (structure), cover and fish. I use it probably 30 times a year and change batteries(Dollar Tree) once a year.

Ken