When a torsional moment (torque) is applied to a structure (shaft) that transmits rotational power, pure shear deformation occurs. Telemetry system is a device that measures the strain generated in the shaft using a strain gauge and transmits it to the torque analysis equipment remotely by a non-contact communication method. The system consists of a Transmitter Unit that amplifies the strain rate signal, converts it into digital data, and transmits it through wireless communication, and a Receiver Unit that converts the transmitted data into an analog signal and outputs it as a voltage signal.