... Meter, Colorimeter, 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 light-sensitive part,can accurately and ... °C-30°C0-50°CPower supply22OV, 50Hz A620/A650 Automatic Refractometer