The company appears to be engineering firm providing electronic devices and test kits to major companies. Anyway, they have an iron test strip that measures iron levels at 0, 0.02, 0.05, 0.1, 0.2, 0.3, 0.5, 0.75, 1.0, 2.0, 5.0 PPM. You can get 25 strips for $14. Kind of steep, but if accurate...