Digital Servo Tester / ESC Consistency Tester for RC Helicopter Aircraft Car ToTsRC Deluxe Digital Servo Tester with 7 outputs Digital Servo Consistency Tester 50-250HZ 4.8-6V Assembled ESC For FPV RC Airplane Description Input voltage: 4.8-6.0v Signal width: 800-2200us 50H analog servo signal cycle 20us gear frequency 50HZ 125H digital servo has a signal period of 8 US frequency 125HZ 250H digital servo signal cycle 4US frequency 250HZ Features: Synchronous output servo system and performance for steering gear for precise control of servo control output signal Test subtle changes between different steering gears. (1 millisecond = 1000 microseconds) Hard Durable Plastic Shell great to keep in a tool box for the field or at the work bench 7 individual outputs Notice: Select the corresponding servo frequency first, 50hz for Analog, 125 or 250 for Digital, then plug in the steering servo, to avoid damage to the steering servo Package Includes: 1 x Digital Servo Tester/ESC Consistency Tester These servo testers are great for testing your servos and esc, also use it to set up a manual control for motor operation. Works with all RC vehicles and aircrafts, from Rc Cars, to RC Trucks, RC Planes to RC Helicopter, RC Boats..... any RC with a JST servo plug this tool will be helpful.