Maybe you need a night vision? Night vision is the process of using a camera to record, rather than detect, visible light during darkness. This is accomplished by using one or more infrared image sensors to detect infrared radiation that is present in low levels in particular wavelengths of light.
Have you ever thought about a special device for it? Thermal Imaging is a term used to describe the process of detecting changes in temperature. Thermal imaging requires an infrared light source to be illuminated on various parts of the body. There are many benefits that come with night vision technology. One of these benefits includes being able to see what is taking place behind closed doors at night, or even in dark rooms. I suggest https://www.atncorp.com/ that is a great supplier of a special night vision.