Digital Servo Tester / ESC Consistency Tester for RC Helicopter Aircraft Car Features: 1. Can synchronously output the servo system and the performance of the servo for precise control of the servo control output signal. 2. Test the subtle changes between different servos (1 millisecond = 1000 microseconds) with high accuracy. 3. Using a potentiometer, you can reduce or increase the width of the output pulse. 4. Made of high‑quality plastic + electronic components, durable enough for long time use. 5. It is suitable for RC car model, airplane model and ship model steering gear. Specifications: Item Type: Steering Gear Tester Material: Plastic + Electronic Components Weight: Approx. 26.2g Working 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 Applicable to: RC Car Model, Airplane Model, Ship Model Steering Gear Package include: 1 x Steering Gear Tester