When calibrating the KH director probe is it possible to change the PH value of the calibration fluid like you can on the Profilux, I have some 4.01 & 7.01 that I want to use but i cant see a way of changing it?
Alternatively will it make much difference if I use 4.01 & 7.01 instead of 4 & 7?
Alternatively will it make much difference if I use 4.01 & 7.01 instead of 4 & 7?
