Which statement about the use of a thermal imager during overhaul operations is correct?

The statement regarding the thermal imager depicting the temperature differential between an object and its surroundings is accurate because thermal imagers work by detecting infrared radiation emitted by objects based on their temperature. This technology allows fire fighters to see variations in heat, which can indicate hotspots or smoldering materials that need to be addressed during overhaul operations.

In the context of overhaul, identifying areas of elevated heat is crucial for ensuring that any remaining fire risks are mitigated effectively. This capability makes thermal imagers indispensable tools for fire fighters, as they help locate hidden embers, check the structural integrity of surroundings, and ensure complete extinguishment of the fire. By translating thermal energy into visual images, they enhance safety and operational efficiency in critical situations.

Understanding how thermal imagers interpret temperature differentials is fundamental for effective fireground tactics, especially during operations involving the assessment and removal of potentially dangerous materials post-fire.