These sensors measure torque on accessories such as starters, alternators, airconditioning compressors, power-steering gearboxes, and water pumps. Other applications include testing of brake torque, bearing friction small-motor dynamometers, pumps, stepping switch torque, and fluid viscosity. Units come with a shunt calibration resistor. Calibration traces to NIST and takes place in the company's metrology laboratory, which is ISO-17025 accredited by A2LA.

PCB Piezotronics Inc., 3425 Walden Ave., Depew, NY 14043, (888) 684-0004,