[CA] Raymarine compatability

[Jfoster921]

I have a pair of raymarine c120 screens from 2004. One of the units is connected to a dsm300 for depthsounder with a b258 transducer. About 4 years ago, the thermistor in the transducer went bad. I purchased a separate transom mounted transducer and connected with a y wife and the temperature worked again for about a year. I replaced the transom transducer and it never worked again for temperature.

I would like to replace on screen with a unit that can be hooked to a new higher powered through hull transducer. What current models ina 10 or 12 inche screen are available that could also tie into the current c120 screen?

Alternatively, is there a transducer and Dsm module That I could buy to integrate to c120 that would fit in same [censored]?