How Thermal Imaging Cameras Detect Leaks
Thermal imaging, also known as infrared thermography, captures radiation in the far infrared range of the electromagnetic spectrum. This allows you to visualize tiny temperature differences on the surface of objects.
Thermal imaging cameras contain sensors that are sensitive to infrared radiation. The sensors convert infrared energy into an electronic signal, which is then converted into a thermal image.
When water leaks, moisture causes a change in surface temperature that can be detected by the infrared camera. Even very small leaks under the floor, behind walls and above ceilings result in subtle temperature differences that can be detected by thermal imaging.