The high-precision water quality irons analyzer developed and produced by Erun Group adopts the testing principle of national standard 1,10-phenanthroline spectrophotometry, which can quickly and accurately analysis the concentration content of Fe ions in water. It is widely used for the testing of total iron in boiler water, circulating cooling water, surface water, groundwater, wastewater and other water. Prefabricated reagents are easy to operate, and even non professionals can easily testing the concentration of iron and Fe ions in water.