1. 4 digit scale, 0-9990 can be set arbitrarily Upgrade encoder adjustment to avoid interference from external factors such as temperature and humidity 2. Soft start and soft stop, dual protection for motor and power supply Lower limit of speed, limiting the minimum speed 3. Knob and button speed control, suitable for people with different tactile sensations Speed regulation increment value, 1, 2, 5, 10, 15, 20, 25, 50, 100 4. Four startup modes for more diverse handling Power off memory function, once set for long-term use 5. Digital display menu options, easy and fast to modify settings Integrated body for a more exquisite appearance. Embedded encoder adjustment, strong resistance to dryness, durability, and precise adjustment Wide voltage range adaptation 6-55V / 1. Soft start and soft stop, dual protection for motor and power supply. Lower limit of speed, limit minimum speed, and reduce minimum space for starting 2. 0-9990 four digit digital tube, scale percentage meter, dual use analog tachometer, 9-item speed adjustment increment value, fine adjustment, fast adjustment 3. Multiple startup modes, more diverse handling, and more versatile use. Power off memory function, one-time setting, long-term use 4. Forward stop and reverse three gears, forward rotation and reverse rotation, arbitrary switching Supports dual speed, different directions, and different rotational speeds. Digital display menu options are intuitive and easy to understand, and setting modifications are convenient and fast 5. Embedded knob switch, integrated body, more exquisite appearance. Knob+button speed regulation, 360 degree mechanical feel knob, membrane button. Wide voltage range, suitable for 6-55V, wider application range for motors Input voltage:DC 6-55V Display method:4-digit digital tube Speed regulation type:current regulation Control frequency:15KHZ Supported load:DC brushless motor Wiring type:fence type terminal Encoder cap:15x17mm Forward and reverse:bidirectional Installation