... Meter, Colorimeter, Gloss Meter, Tintometer, Automatic Polarimeter, Auto Melting Point Apparatus, Automatic Refractometer, Abbe Refractometer, PH/DDS/TDS ... at 1A is better than 30 times. Light Source System 2 lamps are powered simultaneously ( ... . Electronic andmicro-computer systemAutomatic adjustment of light source power.Light energy and negative high-voltageauto-balanceDisplay modeLED ...