... Meter, Turbidity Meter, Colorimeter, Gloss Meter, Tintometer, Automatic Polarimeter, Auto Melting Point Apparatus, Automatic Refractometer, Abbe Refractometer, PH/DDS/TDS Meter, etc ... again.The polarimeter not only can test the angle of rotation of substance and but can calculate its purity, concentrationTechnical ... mm×200(H)mm & 25kg WZZ-2A Auto Polarimeter / Digital Polarimeter / Polarimeter Tester