Product description: 1. The servo motor tester can test analog steering gear and digital steering gear, can control ESC (motor stepless speed regulation test), and can test whether three steering gears are synchronized at the same time (this function is mainly suitable for CCPM mode of the helicopter with the steering gear) 2. Full aluminum alloy shell, anodized, ultra-light aluminum alloy shell with heat sink function increases the strength of the chassis and is more durable. 3. It can easily detect and set the virtual position, jitter and neutral position of the server. 4. Three sets of servos or ESCs can be connected; single-chip control, good stability and high precision. Turn the knob to detect the servo. 5. If you connect the electronic governor (with or without brush), you can get rid of the remote control and perform manual speed regulation. It is very convenient to test the performance of the regulator or motor, and you do not need to tediously connect the remote control and receiver. . 6. This is equivalent to the function of a "" manual receiver "", which simulates the rudder of the transmitter through the button. 3 modes to check servos and ESCs: manual mode/neutral mode/automatic mode. The default power on mode is manual mode (use the button to control the angle). Input power: DC4.8-6V, it can be connected to 3 sets of servos or ESC; it is controlled by single-chip microcomputer, with good stability and high precision. Most Features: All aluminum alloy shell, anodized, can test the analog and digital steering gear, can control ESC (stepless motor speed regulation test) and can test whether three steering gears are synchronized at the same time (this function is mainly suitable for helicopters in servo mode CCPM). Please note: The servo tester cannot slow down your servo directly, it is a device that pulses to test a servo, you can use existing control to operate the servo. Input voltage: DC4.8-6v Size : 48 42 17 mm Weight: 31.5 g Color: blue Number of people: 1 pcs