The HI 96746 meter measures the iron content in water, wastewater and seawater in the 0.00 to 1.60 mg/L (ppm) range.

Nickel is commonly utilized by the electroplating industry in processes utilizing stainless steel, cobalt or nickel alloys.

The HI96739 meter measures the fluoride (F–) content in water, wastewater and seawater in the 0 to 20 mg/L (ppm) range.

Chlorine dioxide is used primarily as a disinfectant in drinking water and also in various industrial processes

Small quantities of silver are bacteriostatic or bactericidal. As a result, it is at times used in disinfection of pools and spas, as well as in water filters.

The HI93733 measures the ammonium ion (NH4+) content in water, wastewater and seawater.

In aquaculture, dissolved oxygen is arguably the most important parameter of water quality

The HI96730 measures the molybdenum content in water and wastewater.

The HI96729 meter measures the fluoride (F–) content in the 0.00 to 2.00 mg/L (ppm) range, in drinking, surface and waste waters.

Nitrates are present in nature as a result of decomposition of organic microorganisms or due to their use as fertilizers. Nitrates reduce to nitrites,