... Meter, Turbidity Meter, Colorimeter, Gloss Meter, Tintometer, Automatic Polarimeter, Auto Melting Point Apparatus, Automatic Refractometer, Abbe Refractometer, PH/DDS/TDS Meter, etc ... -180°~+180°Accuracy±0.02°Scale Value1°Vernier0.05°Magnifier3XTransmittance1%Light SourceSodium Lamp plus Filter, Wavelength 589.44nmSample Tube100mm, 200mmPower ... 58(W)mm×48(H)mm & 12kg WXG-5 Semi Automatic Polarimeter