XDB 315-1 series pressure transmitters utilize piezoresistance technology, use high-precision and high-stability diffused silicon flat film sanitary diaphragm. They are featured with anti-block function, long-term reliability, high accuracy, ease installation and very economical and suitable for a variety of media and applications. XDB315-2 series pressure transmitters utilize piezoresistance technology,use high-precision and high-stability diffused silicon flat film sanitary diaphragm.They are featured with anti- block function, cooling unit,long-term reliability,high accuracy,ease installation and very economical and suitable for a variety of media and applications.