SITRANS P320 Pressure transmitter Gauge pressure HART (4...20 mA) Measuring cell filling: Silicone oil Maximum measuring span: 400 bar (5802 psi) Female thread 1/2-14 NPT Diaphragm: Stainless steel 316L/1.4404, measuring cell: Stainless steel 316L/1.4404; 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 1/2-14 NPT With display (lid with glass window)