A hybrid torque sensor from Sensor Developments Inc. (www.sendev.com) solves noise and maintenance problems by using a digitally modulated, infrared telemetry system to transmit data. With a 6-22,600 N·m capacity and a maximum speed of 10,000 rpm, benefits include: high-frequency response; noise immunity; less susceptibility to coupling effects with other devices; insensitivity to gap tolerances, bearings, or coupling inefficiencies; and maintenance-free operation.