Electric vehicle multi-functional maintenance tester, which is suitable for 24V, 36V, 48V, 60V 72V brushless controller, brushless motor coil, brushless motor internal hall, turning brake detection and brushless motor angle distinction. The portable electric vehicle multi-functional maintenance tester is specially designed to quickly detect the brushless controller and brushless motor (including the motor winding and hall), the phase angle of 60 degrees or 120 degrees, and the turning handle. It is a simple and portable testing instrument for electric vehicle factories, controller production factories, motor production factories, electric vehicle dealers, and electric vehicle after-sales maintenance personnel. Features: Suitable for 24V, 36V, 48V, 60V 72V brushless controller, brushless motor coil, brushless motor internal hall, turning brake detection and brushless motor angle distinction. The portable electric vehicle multi-functional maintenance tester is specially designed to quickly detect the brushless controller and brushless motor (including the motor winding and hall), the phase angle of 60 degrees or 120 degrees, and the turning handle. Quick detection of the brushless controller; quick detection of brushless motor coils; quick detection of the brushless motor Hall; quickly detect the rotating brake handle. Quickly detect whether the phase angle is 60 degrees or 120 degrees. Quick detection of the phase sequence ABC and abc colors of brushless motors. Quickly check whether the speed control handle is works well or not (precise measurement) (the indicator light first turn on green light then off, and then turn on the red light, that means the handle works well) . It is a simple and portable testing instrument for electric vehicle factories, controller production factories, motor production factories, electric vehicle dealers, and electric vehicle after-sales maintenance personnel. It only detects the phase line and Hall line interface of the controller, if the signal elements of the controller and the power-off switch elements are damaged, the controller will not work normally, and the car repairing treasure is unable to judge. Specifications: Name: Car Maintenance Tester Material: plastics Battery: 1 * 9V battery (included) Item size: 105 * 75 * 25mm / 4.13 * 2.95 * 0.98in Package size: 140 * 110 * 40mm / 5.51 * 4.33 * 1.57in Package weight: 153g / 5.40ounce Packing List: 1 * Car Maintenance Tester