PM vs. Sweaty Man

I’m looking at a PM for my tri bike. As I tend to use an aero water bottle, the computer for said PM will be forced to reside in The Sweaty Zone, a corrosive area not unlike the Dead Sea. So… have any of you experienced sweat/water fagility in your PM’s computer?

Thank you.

My Power Tap computer sits on my aerobars, between my pads and my aero bottle. It doesn’t get any sweat on it to speak of. If yours does, go faster.