Calibration fluid pH 7 - 20 ml sachet
With a calibration bag pH 7, you can calibrate the pH probe once.
In some cases (no bypass available), it is necessary to close the electrode hole during calibration. For this you can purchase a fake probe.
With a calibration bag pH 7, you can calibrate the pH probe once.
In some cases (no bypass available), it is necessary to close the electrode hole during calibration. For this you can purchase a fake probe.