Dobe Instruments, with years of scientific research and accumulation, has rapidly emerged in the environmental protection field. Our main products include COD meters, ammonia nitrogen meters, total phosphorus meters, total nitrogen meters, multi-parameter water quality analyzers, heavy metal detectors for iron, copper, zinc, nickel, hexavalent chromium, cadmium, total chromium, lead, manganese, turbidity meters, colorimeters, SS suspended solids, free chlorine, total chlorine, chlorine dioxide, volatile phenols, nitrites, nitrates, phosphates, fluorides, cyanides, sulfides, sulfates, aquaculture, BOD, and over a hundred other water substances detection instruments. Our products have received high praise from customers and are widely used in many fields such as chemical industry, water treatment, environmental protection, industrial electric furnaces, metallurgy, and colleges and universities. With professional technology and services, we have provided water quality analysis solutions for nearly a hundred companies and our business is distributed across most major cities in the country.