Features: LCD with backlight, can measure input voltage, output current. Slow start and slow stop can be set. Upper and lower speed limits can be set. Under-voltage power-off protective with alarm function (flashing backlight) can be set. It can select the function of directly running the motor after power-on and the function of no self-starting after power-on. Specifications: Input voltage: within DC10-55V Measuring voltage: DC10-55V Measuring current: within 20A Starting current: 100ma Current accuracy: 5% Speed regulation type: current regulation Slow start and stop: 0-10 seconds can be set Upper and lower limit: 0-100% can be set Acceleration and deceleration values: 1%, 2%, 5%, 10%, 15%, 20%, 25% optional Supporting motor: brush motor Speed digital display: 0-100 percentage table (not the actual motor speed) Forward and reverse: not supported Output voltage: linear under load Speed regulation mode: inching+encoder dual-use Speed regulation range: 0-100% Control frequency: 15KHZ Installation method: embedded According to module size: 116x76x30mm Panel opening: 109x70mm Package Includes: 1 x for DC Motor Speed ​​Controller note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to difference between different monitors, the picture may not reflect the actual color of the item.