Shanghai Yidian Scientific Instrument Co., Ltd. is a key joint-stock enterprise under Shanghai Yidian (Group) Co., Ltd. Its predecessor was Shanghai Precision Scientific Instrument Co., Ltd. Leici Instrument Factory. Leici "is an independent brand of Shanghai Yidian Scientific Instrument Co., Ltd., founded in 1940. It is the birthplace of pH meters and glass electrodes in China, as well as the birthplace of domestic analytical instruments. For a long time, it has focused on the field of electrochemical analytical instruments. After more than 70 years of development, Leici has gradually become a high-tech enterprise integrating scientific instrument research and development, production, sales, application, integration, and service, and has become one of the largest scientific instrument enterprises in China. Leici focuses on water quality analysis, adheres to innovation, and pursues excellence. Its products cover many categories including electrochemical analysis instruments, electrochemical sensors, titrators/moisture meters, colorimetric water quality analyzers, online water quality monitoring instruments, chemical reagents, and system integration. Our corporate goal is to improve people's quality of life by providing high-tech products and high-quality services. Adhering to the corporate philosophy of "pragmatism, innovation, excellence, and far-reaching", we drive innovation and transformation to become a continuously improving manufacturer of scientific instruments and provider of testing traceability system solutions and operational services. Committed to environmental protection, making the sky bluer, mountains greener, water cleaner, and life better!