Hangzhou Ruiqing Technology Co., Ltd. is a specialized company that integrates technical consulting, technical solutions, instrument sales, installation and commissioning, personnel training, and supply of spare parts and consumables. It operates and sells various imported and domestic instruments and meters, and has the distribution rights of multiple well-known domestic and foreign instrument manufacturers, providing advanced products and technical services for users in various industries. At present, the company mainly acts as an agent for monitoring hundreds of substances in water, including COD analyzer, ammonia nitrogen analyzer, total phosphorus analyzer, total nitrogen analyzer, turbidity analyzer, residual chlorine analyzer, copper, iron, nickel, zinc, hexavalent chromium, nitrite, cyanide, sulfide, iodide, volatile phenol, hydrazine, aniline, etc. It also produces instruments for measuring physical parameters in water such as pH, conductivity, dissolved oxygen, turbidity, chromaticity, and total hardness.