... Spectrophotometer, Visible Spectrophotometer, Flame Photometer, Whiteness Meter, Turbidity Meter, Colorimeter, Gloss Meter, Tintometer, Automatic Polarimeter, Auto Melting Point Apparatus, Automatic Refractometer ... sapphire glass, of excellent properties against corrosion and scratches, free for clean and durable;² High brightness LED lights, with long service life;² Extremely large ...