Infrared is an invisible portion of the light spectrum extending from 0.75 to 1000 microns. All objects warmer than absolute zero (0 Kelvin or -275.15°C) emit energy somewhere within that range. The warmer the object, the brighter we see it in our thermal camera. White is hotter, black is colder. Additional palettes are available such as rainbow; rainbow palette was utilized in this report.
Infrared technology makes thermal information visible so that distinguishing heat patterns can be identified. Heat patterns can then be measured to reveal building, equipment or environmental flaws which, left uncorrected, can lead to expensive damage or equipment failure. Infrared is also used for search/rescue missions, electrical, plumbing/heating and air conditioning inspections.