Fangrui Product Details Made Of High-quality Materials And Primary Purpose: The Speed Control Unit Is A Fully Electronic Device Designed To Control Generator Speed To Respond Quickly And Accurately To Transient Load Changes. Closed Loop Control: When Connected To A Proportional Electric Actuator And Supplied With A Magnetic Speed Sensor Signal, The Engine Will Be Controlled In Synchro Or Droop Mode. Well Protected: Protection Against Reverse Battery Voltage, Transient Voltages, Accidental Actuator Short Circuit, Speed Sensor Signal Or Loss Of Battery Charge. Working Range: Power Supply Voltage Is Dc12v, Frequency Setting Range Is 1000-7000hz, Speed Sensor Signal Range Is Ac1-50v, 85-8500hz. Plastic Shell: The Generator Controller Shell Is Made Of Plastic, Which Has Toughness, Wear Resistance, Aging Resistance And Long Life. Project Type: Generator Speed Regulator Model: Esd2210-12 Power Supply Voltage: Dc12v Maximum Output Current: Dc 4a Frequency Setting Range: 1000-7000hz Speed Sensor Signal Range: