ITEM NAME:RC Electronic Speed Controller Servo ESC Consistency Digital Tester Checker Description: ESC Consistency Tester Servo Digital Tester for RC Helicopter Drone It is possible to synchronize the output control 4 servos and use to compare the steering gear control of the steering servo can be accurate to 2us The PPM input signal changes while the input of the PPM signal synchronization output to the energized servo automatically enters the manual mode (Manual) 20us 50 H Signal cycle analog servo, frequency 50Hz, rotary potentiometers to decrease or increase the width of the output pulse Output: DC/5-6V Output Signal Width: 800-2200us Specification: Select button(Note: Key switch function, circulation patterns) S-1 manual mode (Manual) S-2-bit mode (Neutral) S-3 Automatic mode (automatic) Size Chart: Approx. 70x35x15mm/2.76x1.38x0.59inch Package Includes: 1 x ESC Servo Digital Tester SKU: FUZ0027118176006611.ESC Consistency Tester Servo Digital Tester for RC Helicopter Drone. 1 x ESC Servo Digital Tester. S-2-bit mode (Neutral). S-1 manual mode (Manual). S-3 Automatic mode (automatic). Select button(Note: Key switch function, circulation patterns).