Brand: HJ - Material: Plastic - Color: Blue + black - Input voltage: DC 5~6V - Output signal width: 800~2200us - Can be synchronized output control 4 servos and used to compare the performance steering gear control of the steering servo output signal can be accurate to 2us (1 milliseconds = 1000 microseconds) you can test the steering gear is able to respond to subtle changes - With PPM signal test function in the display the input PPM signal changes while the input the PPM signal synchronization output to the servo - Energized automatically enter manual mode (Manual) 20us - 50H analog servo signal cycle frequency 50Hz rotary potentiometers to decrease or increase the width of the output pulse - Button the Select (Note: the key switch function circulation patterns) - 1. S-1 manual mode (Manual) - 2. S-2-bit mode (Neutral) - 3. S-3 automatic mode (Automatic) - Keys pulse width - 1. 50H analog servo signal cycle 20us frequency 50Hz - 2. 125H digital the steering gear a signal cycle 8us frequency 125Hz - 3. 250H Digital Servo signal cycle 4us frequency 250Hz - Warning: - Digital or analog signal button to select the corresponding servos and then plug in the steering servo to avoid damage to the steering servo