pH meters are electronic devices comprised of a special measuring probe (a glass electrode or, an ion-selective field-effect transistor (ISFET), in specialized cases), attached to an electronic meter that displays the decimal pH reading. The Automatic Calibration PH Meter must be calibrated prior to use against buffer solutions of known hydrogen ion activity.
https://www.yinmik.com/ph-mete....r/automatic-calibrat
Like
Comment
Share
