Shenzhen Changhong Technology Co., Ltd. is a high-tech enterprise founded in 2002. For over 20 years, we have been committed to the research and development, production, and sales of over a hundred water quality monitoring instruments, including COD analyzers, ammonia nitrogen analyzers, total phosphorus analyzers, total nitrogen analyzers, as well as various heavy metals and inorganic compounds. Our product technology involves computer, microcontroller software and hardware, optics, chemical analysis, and other technical fields. The products currently produced by the company mainly include COD analyzer, ammonia nitrogen analyzer, total phosphorus analyzer, total nitrogen analyzer, turbidity meter, residual chlorine analyzer, monitoring instruments for hundreds of substances in water such as copper, iron, nickel, zinc, hexavalent chromium, nitrite, cyanide, sulfide, iodide, volatile phenol, hydrazine, aniline, etc. At the same time, the company also produces instruments for measuring physical parameters in water such as pH, conductivity, dissolved oxygen, turbidity, chromaticity, and total hardness. Our company's products have been sold to various parts of the country, with over 8000 domestic customers located in more than 20 municipalities and autonomous regions across the country. We also export to countries such as Thailand, Indonesia, Singapore, and Europe and America. We have established a good reputation among our customers and have become a leading enterprise in the domestic water quality testing industry with a complete range of products, stable product quality, and excellent comprehensive performance indicators. The "Shenchanghong" brand has also become the leading brand in China's independent production of water quality testing instruments. The company has been focusing on product quality management and new product development for many years, and the stability, repeatability, and operability of its main products are among the top in China. The comprehensive performance is close to or even surpasses foreign brands, with more than 8 newly developed products launched every year. The product sales are steadily occupying the market with an annual growth rate of over 30%. Changchanghong Technology is becoming the leading enterprise in China's water quality testing instrument industry through "active innovation, quality priority, continuous improvement and steady progress". Shenzhen Changhong Technology Co., Ltd. welcomes customers and franchisees to visit!