Calibration with pH 7,01 and pH 4,01 buffer solution.
Simple replacement of the pH/temp probe:
Your ADWA AD-12 at hand, you simply have to unscrew the plastic ring on the top of the electrode and replace it with this one.
Alsó-Kikötö sor 11.C
Szeged, Hungary, 6726
[email protected]
https://adwainstruments.com/