Proportional Regulator Maximum Operating Pressure 43.5 psi Minimum Operating Pressure 7.3 psi Air Inlet Size 1/4 in Air Inlet Type NPT Enclosure Rating IP65 Electrical Connection Type M12 Connector 4-Pole Accuracy +/-0.3 Percent Adjuster Mechanism Control Knob Air Outlet Size 1/4 in Air Outlet Type NPT Control Signal 0 to 10V 4 to 20 mA Current 200 mA Indicator Type High Visibility LED Display Input Voltage 24 V DC Maximum Flow Rate 35 cfm