This tester can be used to overcome the clamp problem of connectors and perform automatic alignment of male and female connectors during the test without incurring single-sided aligning defect. This model is applicable for the inserting and pulling force test for all kinds of connectors. By working with patented automatic core-finding device, accurate inserting/pulling test can be resulted. Being set by Windows and Windows Chinese icons, it provides accessible and convenient operation plus the data storage function (test conditions, displacement curve, life curve