This field provides water quality measurement equipment, reagents, and services specialized in wastewater treatment, cooling water management, and industrial water quality management at manufacturing sites. It handles measurement equipment necessary for factory wastewater regulatory compliance and manufacturing process water quality monitoring, including pH meters, dissolved oxygen meters, turbidity meters, conductivity meters, COD analyzers, and heavy metal analysis equipment. It includes specialized measurement solutions that respond to manufacturing industry-specific water quality management requirements such as cutting oil water quality management, plating solution component analysis, boiler water quality inspection, and wastewater treatment facility monitoring systems.