The pull tester is composed of a hand pump, a hydraulic cylinder, an integrated intelligent digital pressure gauge, a high-pressure rubber pipe, etc, wherein, the RSM-10T/20T/30T hand pump is designed with a single plunger, and the RSM-50T/100T hand pump is designed with a high-pressure plunger and a low-pressure plunger to achieve high pressure and high efficiency. The pump body is made of precise forged steel with long service life. The integrated intelligent digital pressure gauge adopts a high impedance, military grade sensor with high precision. The instrument of integrated design is easy to carry and read, and the peak value is retained. Connect the hand pump and the hydraulic cylinder with a quick connector when used. The pull testers of the series are compact in structure and easy to carry. The hand pump of each pull tester can also be used as the power source of general low-flow and high-pressure oil.