... Meter, Colorimeter, Gloss Meter, Tintometer, Automatic Polarimeter, Auto Melting Point Apparatus, Automatic Refractometer, Abbe Refractometer, PH/ ... Measurement:WZZ-2A built-in auto-controlling system. Power on the polarimeter, the system will search for zero point ... calculate its purity, concentrationTechnical Specifications: ModelWZZ-2A (New)Minimum Reading0.005°Reproducibility≤0.01°Accuracy±0. ...