... , Colorimeter, Gloss Meter, Tintometer, Automatic Polarimeter, Auto Melting Point Apparatus, Automatic Refractometer, Abbe Refractometer, PH/DDS/TDS Meter ... : air-compressor, PC software or micro-printer.² LCD Display, touch panel with numeric keypad.² Single point calibration & calibration curve ... AE-AP1500 Flame Photometer/Spectrophotometer (With Air-compress, PC software, can test K,Na,Li,Ca,Ba)