Electronic-Pneumatic Transducer, Used to Convert a Proportional Electric Output Signal from a Controller into a Direct Acting Proportional Pneumatic Signal, 30" Lead Wires, 2-10Vdc Input Signal @ 0.1 mA Max, 24Vac External transformer, 0.025 Scfm Airflow Usage, Dual Barb Fittings for 1/4" or 5/32" O.D. Plasting Tubing, 30 Psi Maximum Operating Pressure, 0-18 Psi Pressure Range, 3-15 Psi Output Pressure Range, 0.45Cfm Capacity, Includes Cover