I'm in the process of building a new control panel for my watermaker.
While I'm at it I want to replace the kludged Total Disolved Solids (TDS)
meter setup that I have. Right now I have a portable TDS meter stick that
is epoxied into a block of aluminum that I milled out with a cavity for the
meter probes and threaded holes for the in/out water.

When I checking the meter, I saw that it had some water intrusion, probably
from water working up through the prongs in the base of the tester. I also
have no way to clean the probes, so I'm looking for a better solution.

Does anyone have a source for a (panel mountable) TDS meter that's either
12V or battery powered?

-- Geoff
www.GeoffSchultz.org