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In 1953, China’s first pH meter and the first glass electrode came into the world in “Rex”. As a result, there were analytic instruments in China. Now, the “Rex”, located in Shanghai Anting Automobile City, is the largest research and development base of electrochemical analytical instruments, 'Rex' is the brand of Shanghai INESA Scientific INstrument Co.,Ltd.

Shanghai INESA Scientific Instrument Co., Ltd. is one of the leading scientific instrument manufacturing groups with the main products: analytical instruments, balance equipment, electrochemical devices, physical optical instruments and integration, and environmental monitoring system.


As China’s first professional analytic instrument production enterprise, “Rex” is the birthplace of first pH electrode and pH meter and has been focusing on electrochemical analytical instruments business. After half-century innovation and accumulation, “Rex” has possessed unique advantages and position, and continued to expand product categories and increase technology. It has over 100 various electrochemical analysis instruments, sensors and applications, including various laboratories, online and on-site inspection series equipment, not only laying a leading position in domestic and international electrochemical analysis industry, but also making its due contributions for electrochemical analysis instruments development in China.


“Rex” brand is well-known nationwide.


“Rex”, adhering to the tenet of “Credit, Innovation, Precision, Ambition”, is accelerating enterprise development to develop new products, strive for world-class, ensure product quality by strict quality assurance system, and meet customer demands by rapid response mechanism, committed to applications and systems integration and providing “one-stop” services. Our continuous innovation and progress make the old factory full of new vitality. Our objective is “to Improve People’s Quality Of Life by High Technology Products and Services”.


● The birthplace of China’s first pH electrode pH meter

● Shanghai “Famous Brand”

● Shanghai “Top 100 Independent Innovation Brands”

● China Top 10 Public-satisfied Famous Analytic Instruments

● The First Batch of High-tech Enterprises in Shanghai

● Shanghai Municipal Science and Technology R&D Center

● Vice president unit of Electrochemical Professional Committee of Chinese Chemical Association

● Take the lead to pass: ISO9001 Quality Management System Certification

                                       ISO14001 Environmental Management System Certification

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