Introduction to magnetic assistanceelectrical contact pressureTables are widely used in industrial sectors such as petroleum, chemical, metallurgical, and power plants, as well as in mechanical and electrical equipment to measure the pressure of various fluid media without explosion hazards. Usually, instruments can be used in conjunction with corresponding electrical components such as relays and contactors to achieve automatic control and signaling (alarm) of the measured (controlled) pressure system. In order to adapt to the different needs and requirements of the tested objects, this series of instruments has developed more than 10 types of products, including anti vibration type, corrosion-resistant type, corrosion-resistant anti vibration type, and isolation device, on the basis of the original ordinary type. Considering that this series of instruments not only has the characteristics of novel design, reliable structure, complete variety and specifications, good action stability, and strong adaptability, but also has the advantages of combined measurement and control, simple installation, and low maintenance, therefore. It is an unparalleled pressure measurement and control instrument compared to general pressure controllers without indication, switching difference adjustment, and external setting devices