Manufacturer Name: KMC Controls Product Number: XEC-3001 OEM Part Number: XEC-3001 The KMC Controls XEC-3001 E-P Electro-Pneumatic Transducer is a critical component in HVAC systems, converting electronic control signals to pneumatic output. To precisely control air flow, pressure, or other pneumatic parameters, this device is frequently used in a variety of HVAC equipment. https://www.partshnc.com/xec-3001-kmc-controls-e-pi-p-transducer