Thing is Mate, I have seen the issues with Fox alarms, from back on the release of the first Microns in the 1990's, the numbers that were returned to me in the tackle shops, or the angler asking for the Fox customer service phone number.
Yet my Delkims have never caused me a problem, and I do fish in rain. As you say, maybe it is the newer models, I don't know as mine are the original St's.
The only repairs mine have had is down to my own fault of leaving batteries in and corroding the battery terminal etc. I sent them back to Delkim, and had them repaired within a week.