SmartLine STG74L inline pressure transmitter, Pressure Type: Gauge, In-Line, Pressure Range: From -14.7 to 500 psi (-1.0 to 35 bar), Accuracy: Until 0,055% (0.04% optional), Output/Protocol: 4-20mA dc (analogue) with DE protocol, Diaphragm Material: Stainless steel 316L, Head Material: Stainless steel 316, Filling Fluid: Silicone Oil 200, Process Connection: 1/2" NPT Female, Electronic Housing Material: Polyester powder-coated aluminium, Approvals: F1 Certificate (Calibration Test Report and Certificate of Conformity), Supply Voltage: From 10.8 to 42.4 VDC (for HART, although this model is DE)