If you don't mind me asking, what PH range on the high end and what kind of swing from day to night are you wanting to achieve?Repeatability is of course important. But repeatability of wrong numbers is not helpful.
Apparently I just had a 3 hour argument with a guy about how I thought he was wrong about these probes having a -+.2 acceptable range when that wasn’t even his opinion.
So yeah repeatability of +-.1 is important and will work just fine.