SITRANS P420 Pressure transmitter Gauge pressure HART (4...20 mA) Measuring cell filling: Silicone oil Maximum measuring span: 63 bar (914 psi) Female thread 1/2-14 NPT Process connection: Stainless steel 316L/1.4404, Seal diaphragms: Alloy C276/2.4819, Sensor differential pressure: Process flange: Stainless steel 316/1.4408 Housing made of stainless steel precision casting CF3M/1.4409 (similar to 316L) Dual chamber device Intrinsic safety, Explosion proof 2 x M20 x 1.5 With display (lid with glass window)