The main functions of the intelligent pressure switch include 4-20mA transmission output, two PNP switch outputs, and on-site display functionality. Using SMT technology and integrated design concepts, the sensor can provide constant voltage and constant current excitation. It has a built-in microprocessor and can be programmed with three buttons, enabling adjustable settings for zero, full-scale, decimal, and control points, as well as current settings, without any potentiometer adjustment. The entire machine is designed for industrial-grade temperature environments and is highly resistant to interference.