The Model 5000 offers wet/wet differential pressure measurement of both liquids and gases compatible with stainless steel, but without the use of fluid-filled cavities. This eliminates the risk of system contamination and at the same time offers all of the benefits associated with AST's MEMs-based Krystal Bond Technology. In the event that either pressure port is at full line pressure and the other at zero, no damage can be done to the transducer/transmitter.