Model 1388-124 Sprocket/Pulley Rotary Transformer Torque Sensor, 500 lb-in, 1,000 lb-in, 0.1 % Non-linearity and Hysteresis, Reduced Sensitivity to Belt/Chain Tension Loads on Torque Readings Not to Exceed Maximum Overhung moment. Originally designed for a precision feedback control loop on textile machinery, the Model 1388 Sprocket/Pulley Torque Sensor is an accurate method to measure processing torques. Coupled to any belt or chain driven stub shaft and monitored by a closed electrical circuit, machinery speeds and material feed rates can be precisely controlled. Used in an automation application to increase productivity and decrease power consumption. Rotary transformer with encoder option available.