The old one couldn't stand up to salt air, I guess, and the battery contacts corroded away. West Marine sells a Marinco but nowhere does it say it's "marinized". Then again, multimeters are so cheap nowadays that maybe I should just buy two and store one in a zip lock bag or something.
I'm making the final push to get boat projects done, and this is for one of the big ones- all new electronics. Less than a month to go before we shove off.