... Meter, Colorimeter, Gloss Meter, Tintometer, Automatic Polarimeter, Auto Melting Point Apparatus, Automatic Refractometer, Abbe Refractometer, PH/DDS/TDS Meter, etc.Application ... -AP1500 Flame Photometer/Spectrophotometer (With Air-compress, PC software, can test K,Na,Li,Ca,Ba)