This downloadable visual illustrates the full spectrum of known electromagnetic waves, from radio waves through gamma rays, with clear reference points across wavelength and frequency.
This image was featured in Heat Treat Today’s February 2026 Annual Air/Atmospheres Heat Treating print magazine in the article “Redundant Flame Safety” by Bruce Yates, Protection Controls. In the article, the visual helps provide context for where ultraviolet radiation falls within the electromagnetic spectrum — an important reference when discussing UV-based flame detection in industrial heating applications.
Click on the image below to download this reference for electromagnetic wave ranges and their relevance to thermal processing and flame safety discussions.
