I bought a bunch of datamarine stuff second hand. Never installed it on my
boat. Ended up going with
raymarine.
Depth display has backing ring, looks new $100
Speed display has backing ring, great condition but looks like it had been installed $75
Speed display no backing ring, def used. $25
Transducer ADX-215 $100
I bought these, they have been sitting in a bin for years. I have more transducers and datamarine stuff and will be listing as I pull stuff out.
Located in cocoa, FL