... the content & concentration of elements (K, Na, Li, Ca, Ba). It can be widely applied to agriculture (soil, fertilizer, tobacoo), industry ... , butane or liquefied petroleum gas.² Standard accessories: air-compressor, PC software or micro-printer.² LCD Display, touch panel with numeric keypad ... & 27kg AE-AP1500 Flame Photometer/Spectrophotometer (With Air-compress, PC software, can test K,Na,Li,Ca,Ba)