When choosing a Garmin MFD Unit, you are confronted with many variables. Screen size, touchscreen / keyed, screen definition... lets not forget SONAR CAPABILITIES!
Certain machines are capable of different sonar features. GPSMAP Series units can run every option of sonar available from Garmin; Traditional, Chirp, ClearVu, SideVu & more!
So lets get to it!
8 pin...12 pin... Whats the deal???
8 Pin Transducers are capable of shooting Traditional and Chirp Traditional, as well as clearvu, if choosing a CV ducer.
12 Pin Transducers are Capable of shooting CLEARVU, SIDEVI AND CHIRP!