Temperature is the most measured physical parameter in the world. For many industrial and commercial processes, temperature monitoring is essential to ensure operational safety and efficacy. Conventional electric temperature sensors prevalent throughout industry can perform adequately if they are replaced often and are effectively shielded from EMI. However, they all suffer from the same inherent limitation: they can only measure temperature at a single point or location. In practice, these sensors are often deployed at only a handful of locations and thus the overall temperature distribution remains unknown. The intent of this document is to present fundamentally how to perform distributed temperature sensing and demonstrate achievable accuracies with empirical results. If the reader is unfamiliar to the underlying principles behind fiber optics and the Sensuron interrogators, our white paper on Fiber Optic Sensing Fundamentals is a recommended precursor to this document.