This tester is used to test the extinction state of the Notebook upper cover after opening and closing operations many times. It can measure the torque value of the hinge, register the curve fluctuation and produce torque extinction life curve so as to improve the inconvenience in which the torque can only be measured after removing the hinge. Accessible and convenient in operation through Windows icon programming and all data can be stored (test conditions, torque-angle curve, life curve and inspection report, etc.)