testo thermal top tip #4
Some general guidance when using thermal images for investigating problem areas:
- You can only ever measure the temperature of the surfaces with a thermal imager; you cannot look into something or through something.
- Many materials such as glass that are transparent to the human eye are not transmissive (permeable) to long-wave infrared radiation.
- Where necessary, remove any covers from the measuring object, otherwise the thermal imager will only measure the surface temperature of the cover.