2. Single-chip computer control, good stability and high precision. 3. The product is simple to use, even beginners can quickly get started, and easily complete the various settings and tests. 4. The product can easily detect and set the servo's false position, jitter and center position. Product Description: It can easily detect and set the servo's false position, jitter and center position. Can be connected to two sets of servos or ESCs; single-chip computer control, good stability and high precision. Rotate the knob to detect the servo. If connected to the electronic governor (brush or brushless can be) can get rid of the remote control device for manual speed control, for testing the governor or motor performance is very practical, without the need to tediously connect the remote control and receiver. It is equivalent to a “manual receiver” function, through the knob to simulate the transmitter rudder. Parameter: Adjustment mode: manual power supply Input voltage: 5-24V Output signal: 50hz high level 0.5ma to 2.5ms Package include: Mini speed controller *1