... Meter, Turbidity Meter, Colorimeter, Gloss Meter, Tintometer, Automatic Polarimeter, Auto Melting Point Apparatus, Automatic Refractometer, Abbe Refractometer, PH/DDS/TDS Meter, etc ... of rotation, specific optical rotation of optically active substance. You can calculate its purity, concentration and percentage by measured value.² Agriculture ... mm×58(W)mm×48(H)mm & 12kg WXG-5 Semi Automatic Polarimeter