Re: Transducer for SS188
I have the optional in-dash depth gauge (Faria) that I had ordered from the factory as a back-up to my fishfinder/sonar unit. It has served me well so far. The transducer is mounted on the interior of the hull, not punched through it as there isn't a fitting on the exterior of the hull that I've seen (although the I/O gives me better access to the interior of my hull, I haven't found where they located the transducer yet).
I frequently look to see if there is a difference in the readings between my fishfinder/sonar, which has a transom mounted transducer, and the in-dash. Rarely has there been a difference in the readings (maybe a tenth of a foot only if off at all).