Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.
Thermal imagers only see the surface of any object and more specifically the energy emitted from any surface. Thus, thermal imagers do not see through any surface including glass. Thermal imagers have to use specialized optics such as germanium, ruby and other costly compounds that transmit the infrared wavelength.
