... Li, Ca, Ba). It can be widely applied to agriculture (soil, fertilizer, tobacoo), industry (cement, glass ... 5 channels and be able to detect K, Na, Li, Ca, Ba 5 elements. With K, Na, Li, Ca, ... 0-100ppm;Li: 0-100ppm;Ca: 0-1000ppm;K: 0-100ppm;Na: 0-100ppm;Li: 0-100ppm ... Li: 0.025ppm;Ca: 0.1ppm;Ba: 10ppm;K: 0.01ppm;Na: 0.01ppm;Li: 0.025ppm ... ;Ca: 0.1ppm;K: 0.01ppm;Na: 0.01ppm;Li: 0.025ppm ...