GNL-120-5(M2)Oxygen analyzer Product FeaturesWith microcontroller as the core, stable and reliable;Using frequency conversion ion flow sensor as the measuring unit, high precision, long calibration cycle;Split structure design, probe using high temperature resistant material;128×640LED display window display gas concentration, menu, data and device working state, intuitive display, rich content;Using the latest touch button technology, button sensitive, reliable, simple operation, long service...