Main Purpose: The speed control unit is a fully electronic device designed to control the speed of the generator to respond quickly and accurately to transient load changes. Made from high quality materials and Closed circuit control: When connected to a proportional electric actuator and supplied with a magnetic speed sensor signal, the motor will be controlled in synchronized or drop mode. and high quality Well protected: Protection battery reverse voltage, transient voltages, accidental actuator short circuit, speed sensor signal or battery charge loss., Weight: 1.12105060227 Pounds, Manufacturer: Rtxbvg