The HWPB5 pressure transmitter uses the piezoresistive OEM pressure sensor with stainless steel isolation film as the signal measurement element, and is automatically tested by computer, and the performance compensation of zero point and temperature in a wide temperature range is carried out by laser resistance adjustment process. The signal processing circuit is located in the stainless steel housing and converts the sensor signal to the standard output signal. The whole product has undergone strict testing and aging screening of components, semi-finished products and finished products, and the performance is stable and reliable. With its excellent reliability, flexibility and diversity, the product is widely used in petroleum, chemical, metallurgy, electric power, water level and other industrial process site pressure measurement and control.