... Whiteness Meter, Turbidity Meter, Colorimeter, Gloss Meter, Tintometer, Automatic Polarimeter, Auto Melting Point Apparatus, Automatic Refractometer, Abbe Refractometer, PH/DDS/TDS ... clean and durable;² High brightness LED lights, with long service life;² Extremely large storage capacity can store up to 1000 ... temperature display15°C-30°C0-50°CPower supply22OV, 50Hz auto refractometer(1.3000~1.7000)