Features: The remote Digital Servo Tester/ESC Consistency Tester enables simultaneous testing of 4 servo with 2μs precisions, featuring auto/manual mode and LCD display for remote helicopters, car and aircraft. Switches between 50Hz analogs and 250Hz digital signal, with overloaded/short circuits protective and broad compatibility for diverse servo/ESC models. Designs for remote hobbyists, robotics engineers, and technicians requiring precise servo calibration, signal debugging, and ESC synchronization. Optimizes performances in remote aircraft maintenance, DIY robotics projects, or automotive model tuning with its lightweight design. Safely test signal responsiveness via rotating potentiator adjustments and realtime screen feedback, ensuring servo durability across 800-2200μs pulse ranges. Specifications: Material: Plastic Size: 75x38x15mm/2.95x1.49x0.59in Input voltages: DC5-6V Output signal width: 800-2200us Package Includes: 1pc Digital Servo Tester note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.