testo thermal imager

testo thermal imager: What is the most important aspect of capturing a good thermal image?

Focus is the most critical element in recording a thermal image. Focus and the perspective of the target area are the image characteristics that cannot be changed.

testo thermal imager: Does a thermal imager work in complete darkness?

Yes.  Thermal imagers operate in a range of the spectrum outside the visible light wavelengths and is unaffected by light (except as it is a source of heat).

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