SM39Y04-L Explosion-proof type pressure sensor with high precision, high stability: sensing unit adopts the BEAN company proprietary processing technology, production of raw materials and the United States of BH series foil strain gauge do nothing - electrical conversion components. Analog (enlarge) with high precision instrument op-amp charge amplifier components, low drift feedback element via special choice. Temperature coefficient on the whole, less solder joints, small volume, high earthquake intensity. Integrated temperature compensation technology, signal and precision temperature compensation, enhanced processing into 4 ~ 20 ma or 1 ~ 5 v standard signal. As DDZ Ⅲ, DDZ - S series instrumentation and industrial computer or distribution system interface, realize the automatic measurement and control of production process. Can be widely used in petroleum, chemical, metallurgical, power, light industry, building materials, the scientific research and other fields. Is the first choice for industrial process control products.