... Turbidity Meter, Colorimeter, Gloss Meter, Tintometer, Automatic Polarimeter, Auto Melting Point Apparatus, Automatic Refractometer, Abbe Refractometer, PH/DDS/ ... key, then the meter will be calibrated automatically.Auto-Buffer Recognition:In calibration, the meter will display ... electrode slope,you can judge by the indicator to replace electrode or not.Automatic Temperature Compensation:PHS-3BW ...