1,A620/A650 Automatic Refraotometer, 2,high-performance CCD light-sensitive part 3 ... , Gloss Meter, Tintometer, Automatic Polarimeter, Auto Melting Point Apparatus, Automatic Refractometer, Abbe Refractometer, PH/DDS/TDS Meter, etc.Application: A620/A650 Automatic Refractometer includes high-performance CCD ... temperature display15°C-30°C0-50°CPower supply22OV, 50Hz A620/A650 Automatic Refractometer