... content & concentration of elements (K, Na, Li, Ca, Ba). It can be widely applied to agriculture (soil, fertilizer, tobacoo), industry (cement ... . With K, Na, Li, Ca, Ba five filters, which can detect three kinds of elements, show three kinds of element ... touch panel with numeric keypad.² Single point calibration & calibration curve can be saved.² RS232 interface, external computer or printer. With a ...