I'm using a Lowrance Hook2-5 Splitshot sonar on my Nucanoe F12. I put a Scotty transducer mount on a 8" low-profile rail on the gunnel, where I can reach up and swivel it up and out of the way when launching/beaching. Works pretty well, and is easily removed if I am fishing a shallow shoals river and don't need the sonar. I really like the unit, only issue has been getting SonarChart Live working with the included Navionics map card. They are sending a new card that hopefully corrects that.