Many industrial manufacturing processes require monitoring and control of temperature at key points in the operation to ensure the highest product quality, maximum throughput and optimized yield. To meet these demands, innovations are driving new precise and reliable thermal measurement solutions. Traditional technologies such as thermocouples and thermistors are giving way to more sophisticated optical techniques that deliver improved reliability and repeatability needed by modern thermal processes. This has led to the growing use of fiber optic sensors that are immune to electromagnetic interference (EMI) common in industrial environments, and non-contact pyrometers that measure precise thermal radiation.