Thermal Imaging Cannot Penetrate Walls for Detection

Thermal imagers cannot penetrate walls or floors like X-ray machines. They can only detect heat emitted from the surface of an object. However, in certain cases, the thermal imager can detect anomalies inside walls or floors, such as water pipe leakage or heat loss due to poor insulation. This is because the thermal imager can capture the heat conducted to the surface of the wall or floor. If the pipe has no contact with the wall or ground, the temperature cannot be conducted, and the thermal imager cannot detect it.