Profile: Teledyne Instruments, Inc., Test Services Div. offers valve testing products and equipments. We provide products such as torque sensors & load cells, wrench products & calibrators, valve testing services, automotive torque testing and strain gage services. Our valve test products are used for monitoring torque and thrust in safety-related systems within nuclear power plants. Our torque wrench calibrator is a microprocessor-based instrument and it is used in the field, laboratory and factory floor.