Switches between 50Hz analogs and 250Hz digital signals , with overloaded / short circuits protective and broad compatibility for servo / ESC models Optimizes in remote aircraft maintenance , DIYer robotics projects , or automotive model tuning with its lightweight design Safely signals responsiveness via rotating potentiator adjustments and realtime screen feedbacks , ensuring servo durability across 800μs-2200μs pulses ranges Designs for remote hobbyists , robotics engineers , and technicians requiring precise servo calibration , signals debugging , and ESC synchronization 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, Manufacturer: Rxgiasup