I've read the archives regarding the Kenyons, my question, are there any other current transducers that will work on my Micro 210? The head operates fine, but when the old owner replaced the transducer he couldn't get the new one to calibrate. I'm getting a GPS so I'll have another, more accurate, way to determine speed, but would still like to unit to work if possible. By the way the matching depth gauge works just fine. The units are in an '88, 26.5 Any input would be appreciated.