According to Hanna , manganese is one of the most common metals present in nature and is used in many industrial applications, for example, in the production of fertilizers and in the pharmaceutical industry.
Manganese salts are also used in iron alloys (steel manufacturing) and non-iron alloys as it improves their corrosion resistance and hardness. Manganese is not considered to be dangerous, but high concentrations of this metal in water will result in change of taste and smell. In industry, manganese can produce corrosion and incrustations to pipes when found in high concentrations. HI 93709 and HI 93748 are portable microprocessor meters that determine the concentration of manganese in water at the touch of a button, and are ideal for field applications and monitoring.
HI 93709 is supplied complete with 2 cuvets, battery and instructions.