... , Turbidity Meter, Colorimeter, Gloss Meter, Tintometer, Automatic Polarimeter, Auto Melting Point Apparatus, Automatic Refractometer, Abbe Refractometer, PH/DDS/TDS Meter, ... measuring the content & concentration of elements (K, Na, Li, Ca, Ba). It can be widely applied to agriculture (soil, fertilizer, tobacoo ... 100ppm;Na: 0-100ppm;Li: 0-100ppm;Ca: 0-1000ppm;Ba: 0-3000ppmK: 0-100ppm;Na: 0-100ppm;Li: 0 ...