One of SCD’s commercial applications of SWIR and LWIR uncooled detectors is furnace temperature mapping. By using thermal infrared cameras it is possible to establish a temperature mapping model which helps to measure the molten iron temperature. The temperature measurement of blast furnace (BF) molten iron is a mandatory requirement in the iron-making process, and the molten iron temperature is significant in estimating the molten iron quality and control blast furnace condition.