Emko manufactures the EPM-7790 speed controller, known for its precision and reliability. This device offers robust speed control features, ideal for managing variable motor speeds in industrial applications. Common uses include conveyor systems and automation equipment, where maintaining consistent performance is critical. Emko EPM-7790.2.00.0.4 Speed Controller V/F Motor Speed & Direction Control. (L x W) 72 mm x 72 mm. 10 – 30V DC.