Lol, I'm a former 20+ year BMW/Mini owner. That one doesn't hold water either. The Indy mechanic is still using the same parts from the same German parts manufacturer with 50% savings purely because it isn't the dealer or the markup because it's the dealer. Once it's out of "warranty" do what you will. Upside the magnuson-moss act protects you from that bs crap the dealers pull about not honoring the warranty if it wasn't done by them.
My gripe is that
@MnFish1 is arguing about the warranty and that's for an whopping year from neptune. Once your past that, your on your own anyway. All they will do is offer you a replacement at a laughable "discount", BTDT by the way. Obviously not due to a busted probe, lol.
Again, plenty of folks use Milwaukee, pinpoint, apera, atlas scientific probes for ORP and PH and it doesn't break anything, so what's the difference with a non Neptune labeled conductivity probe?