Feature:1. High Accuracy Simulation Tachometer: DC motor governor achieves real time monitoring of motor speed to ensure stability and safety. And you can make adjustments timely.2. Intelligent Speed Control: Automatically adjust motor speed as needed, energy saving, environmentally friendly, and improving work efficiency.3. Adjustable Speed Settings: Adjust motor speed through buttons and knobs, this motor governor is suitable for various DC motor types.4. Work Details: Motor speed regulator is made of premium ABS material with a working voltage DC 655V, maximum current 30A, 4 digit display, control frequency 15KHZ, embedded installation.5. Easy To Install: Electric motor speed controller has an innovative all in 1 design, no additional installation required. Easy to operate for convenient use.Specification:Item Type: DC Motor GovernorMaterial: ABSInput Voltage: DC 6-55VMaximum Current: 30ADisplay: 4 digit LED DisplaySpeed Control Type: Current RegulationSpeed Control Method: Button and KnobControl Frequency: 15KHzInstallation Method: EmbeddedWiring Type: Barrier Terminal.Package List:1 x Speed Controller1 x User Manual