HWPC4 double flanged differential pressure transmitter adopts monocrystalline silicon technology pressure sensor. The monocrystalline silicon pressure sensor is located at the top of the metal body, away from the contact surface of the medium, to achieve mechanical isolation and thermal isolation. The sensor lead of glass sintering is integrated with high strength electrical insulation of the metal matrix, which improves the flexible performance of the electronic circuit and the ability to withstand transient voltage protection. Capable of handling complex chemical and mechanical loads with strong electromagnetic interference, suitable for pressure, level or flow measurement applications in demanding process industrial environments.