I have buried two. Each of the boats I purchased had them and shortly died. I was never been able to find one but you can get new depth
transducers for the ST50 depth
will have no parts
for any of the ST50 devices. Airmar carries the depth transducer. Your speed log will be the next to die.
There is also the possibility that the wires / connector have gone bad and that still leaves the ancient display. You really can't know if it works OK. A newer Raymarine
unit would support Seatalk
. I'm not surer how it would daisy chain with the ST50 devices however. Given the age of these units I really would not invest more money
in them. Used transducers at this point would be quite old and maybe only last part of a year. The hassle factor is huge. If you just can't spend the money
a Kestral hand-held wind
meter and some strips of mylar on the shrouds can get you through a season or two.
What I did was install a wireless TackTick. You tap two holes in the top of the masthead and you have completed the installation
. They cost more but not that much more these days. Installation
sure is a great savings. I'll probably get around to replacing the rest of the ST50 devices with these too. They are very flexible and integrate automagically. I take the display down below at night so I can check the wind
from the bunk.