4-digit scale, 0-9990 can be set arbitrarily. Upgraded encoder adjustment helps avoid interference from external factors such as temperature and humidity. Soft start and soft stop provide dual protection for motor and power supply. Includes speed lower limit to set minimum speed. Knob and button speed control suitable for users with different tactile preferences. Speed regulation increment values: 1, 2, 5, 10, 15, 20, 25, 50, 100. Four startup modes for versatile operation. Power-off memory function allows settings to be saved for long-term use. Digital display menu enables easy and fast setting adjustments. Integrated body design for a refined appearance. Embedded encoder adjustment offers strong resistance to dry conditions, durability, and precise control. Wide voltage range adaptation: 6-55V. Input voltage: DC 6-55V Display: 4-digit digital tube Speed regulation type: current regulation Control frequency: 15KHz Supported load: DC brushless motor Wiring type: barrier terminal Encoder cap size: 15x17mm Speed regulation: button + encoder Maximum current: 30A (does not support forward and reverse functions) Color: Blue & Black Material: Plastic Dimensions: 77mm x 57mm x 38mm; Opening size: 72mm x 52mm Package Contents: 1 x Governor Note: Other items not included. Light reflection and display differences may cause slight color variation between image and actual item. Measurement error allowed: +/- 1-3cm.