Infrared sensors used in proximity sensors and position sensors are an ideal choice for detection of products in high temperature environments. Trigger points of up to or over 800⁰C are common. Infrared sensors are used in the proximity of high heat processes, and work reliably because the infrared energy emitted from the elevated temperatures encountered is strategically employed in the sensing process. Infrared sensing technology is ideally suited for continuous casting processes, hot media mold filling and level sensing, high and low limit level controls, and measure/cutoff of hot cast or rolled materials. Ideally, infrared sensors should be specified based on several important criteria.