The 740D21PCD4GA General Purpose Gauge Baratron® Capacitance Manometer features a 20 PSIG range with 1% of reading accuracy and a 4-20 mA analog output with a 9-pin D-subminiature connector. It has female 4 VCR type fitting. All exposed sensor surfaces are made from Inconel® nickel alloys for exceptional resistance to corrosion from a wide variety of aggressive chemicals. The sensor is also fully welded, guaranteeing safety to equipment operators from accidental exposure to dangerous chemicals. This advanced sensor and its electronics are mounted in a rugged stainless steel enclosure that can withstand harsh environments. The 740D is referenced to atmospheric pressure.