Endress+Hauser (E+H company for short) is a multinational group company specializing in the production and sale of industrial automation instruments. Its products cover industrial measurement instruments such as level (liquid level), pressure, flow, analysis, temperature, system and tank farm, recorder and communication, and it is one of the world leaders in the field of automation. Founded in 1953, E+H Company is headquartered in Switzerland, with more than 40 branches all over the world and more than 5,800 employees engaged in research, development, production, sales and maintenance. Large-scale production centers have been set up in Germany, Switzerland, France, the United States, Japan and other industrial countries, and their strict quality management and complete quality assurance system have reached the international standard of ISO9001. Connecting with the market is one of the important factors for developing high-quality and high-reliability instruments. For more than 40 years, E+H Company has benefited a lot by closely connecting with the market and continuously developing marketable products, and has become an omni-directional supplier.