THERMAL imaging (infrared) CAMERA$1,000+
Another branch of military research to bear ever more peacetime fruit is the THERMAL IMAGING CAMERA. These tools detect thermal energy—specifically infrared Along with visible light, IR is part of the electromagnetic spectrum, but like X-rays, microwaves, and radio waves, it cannot be seen with the naked eye. Thermal imaging cameras employ sensors that change electrical resistance, voltage, or current when heated by IR, then display this information as an image called a thermogram that can be viewed and analyzed.
