1、Function: Testing device can quickly detect the quality of the controller, quickly test whether the brushless motor coils good or bad, quickly check the brake handle. 2、Features: Fast detection of phase sequence ABC and ABC color of brushless motor, quickly detect whether the phase angle is 60 degrees or 120 degrees. 3、Application: The testing device is a necessary tool for electric vehicle manufacturers, controller manufacturers, motor manufacturers, electric vehicle dealers, and electric vehicle after sales maintenance personnel. 4、Exquisite Workmanship: The electric bicycle tester is made by excellent workmanship, which can provide accurate detection and has good detection effect, with outstanding performance. 5、High Efficiency: Brushless motor controller is high efficiency, small size, light weight, easy to carry, convenient for you to use, and bring you a good use experience.