American Sensor Technologies offers the AST4900, a competitively priced, high-quality pressure sensor for use in the measurement of gases and liquids in high purity applications. Using Krystal Bond technology, these stainless steel sensors are free of oil-fill, welds, and internal O-rings, all of which eliminate the risk of system contamination in extreme conditions. The AST4900 media isolated pressure sensor also holds a CE EN61326 Certification and UL/cUL508 Approval. ?The AST4900 is available in two standard fittings: 1/4” NPT Male and 1/4” VCR Male. Each sensing element is machined from 316L stainless steel and electropolished to remove any contaminants.