This product sticks the Kama foil strain gauge in the cavity, and separates it from the measuring medium through the stainless steel diaphragm and shell. The product can work in harsh environment. The integrated temperature compensation technology is adopted, and the signal is converted into 4 ~ 20mA or 1 ~ 5V standard signal through precise temperature compensation, amplification and processing. It can interface with DDZ Ⅲ, DDZ-S series instruments and industrial computers or distributed systems to realize automatic measurement and control of production process. It can be widely used in petroleum, chemical industry, metallurgy, electric power, light industry, machinery, environmental protection and other fields.