Toa DKK is responding to a wide range of needs in fields such as environmental measurement, chemical analysis, production and quality control, process control, industrial gas detection alarms, and medical-related equipment, with measurement technologies centered on "water, air, gas, and medical." Utilizing the unique technologies cultivated over many years, we provide products and services from the customer's perspective. Measurement instrument business (environmental and process analysis instruments, scientific analysis instruments, etc.) pH meters, ORP meters, electrical conductivity meters, dissolved oxygen meters, total nitrogen/total phosphorus/COD meters, organic pollution monitors UV meters, ion analyzers, ion chromatographs, automatic titration devices, salinity analyzers, turbidity meters, residual chlorine meters, etc. Toa DKK is the exclusive distributor for HACH in Japan. HACH products include turbidity and SS meters, residual chlorine meters, phosphorus analysis devices, ammonia analysis devices, sludge interface meters, spectrophotometers, and portable pH/ORP/electrical conductivity/dissolved oxygen meters.