This humminbird fish finder 535 is in used working condition. The transducer comes with a trolling motor mount because that is where I had it mounted. The fish finder has a quick disconnect from the base so u can take the main unit off every time u are done with your boat. If u get a new transducer that has newer technology, this unit will work at a higher quality rate but works fine with this setup. The transducer has some scratches on it from being on the trolling motor. If you have any questions please feel free to email me and I will get back with u as soon as I can.