Chongqing Shangjie Instrument Co., Ltd. is a joint venture in mainland China under the Taiwan Shangjie Instrument Co., Ltd. It is a national high-tech enterprise established in 2009. The main products include: online DO meters, online MLSS (SS) meters, online pH (ORP) meters, online nitrate nitrogen/ammonia nitrogen analyzers, online fluoride (chlorine) ion meters, online residual chlorine (chlorine dioxide) meters, online turbidimeters, conventional five-parameter analyzers, portable DO meters, portable nitrate nitrogen/ammonia nitrogen meters, and various water quality analysis instruments, with most of the core components of the sensors imported from abroad.

In order to better serve the mainland market and provide customers with better cost-performance products, the products have been assembled, debugged, and system integrated in Chongqing. Some of the company's products have obtained "Environmental Protection Product Certification" (CEP certification), and some products have passed calibration by the international authoritative testing agency SGS. Most products have passed EMC testing by TUV Rheinland and obtained CE certification; all products have registered computer software copyrights and some products have obtained relevant patent certificates; at the same time, standardized management according to ISO9001, ISO14001, and ISO45001 standards has been implemented!

With the mission of "advocating technology and seizing the opportunity," we strive to be more professional and specialized in the field of water quality analysis instruments. "Bringing greater value to the general contractor" and "enabling end-users to continuously reduce costs" are our goals.

The main application fields of the company's products include: municipal wastewater treatment/industrial wastewater treatment, tap water/water treatment, pipeline monitoring/drinking water, surface water/water conservancy, and chemical/light industrial processes.