The TH-1000 series torque detectors employ a new magnetic phase difference method with improving functionality while maintaining the advantages of Ono Sokki's conventional torque detectors. They incorporate high durability and long service life---the biggest features of our torque detectors. The new magnetic phase difference method does not require AC power supply to an auxiliary motor for rotation detection change. TH-1000 series is a standard type torque detector with the rotation speed range up to 6000 r/min. The TH-2000 series is a high-speed rotation type which can be used for torque characteristic test of high-speed rotating motor such as an EV/HEV motor, a centrifuge machine or the like. The characteristic data of the detector can be automatically set up on the TH-5100 torque meter when power is turned on.