Process Instruments, Inc.

Process Instruments provides repair, calibration and instrument support services to clients worldwide. The Calibration Lab, originally providing instrument support services, has grown into one of the premier commercial labs in the United States, with excellent capabilities in resistance and optical pyrometry.

Process Instruments provides the highest quality calibration and repair to L&N Optical Pyrometers and Rayotubes. Our pyrometry standards, acquired from Leeds & Northrup's calibration lab when L&N moved from its North Wales facility, are characterized by NIST, assuring the highest accuracy.