Photo of an Avio TVS 700 IR Camera-Courtesy of Nippon Avionics Co. Ltd.
Some of the actual devices appear like slightly oversized video cameras, while others appear a bit bulkier. They have been getting smaller since the introduction of Focal Plane Array (FPA) detectors in the late 1990s.
Thermal Image of the Space Shuttle in false colors-Courtesy of NASA
Specific uses of thermal imagers are widespread. Several major cost saving uses depend upon the temperature measurement capability of the imaging equipment and a great many commercial and industrial uses help produce significant cost savings and cost avoidance.
Thermal imagers are one of the predictive maintenance tools being widely used in commerce and industry.