The infrared window can penetrate UV, visible light, infrared light (0.15um-14um ), suitable for all current infrared thermal imaging cameras, infrared point thermometers, UV thermal imaging cameras. It can be installed directly on the shell of the closed electrical cabinet, using the infrared window can reduce electromagnetic radiation, high pressure, high temperature and other harm to the user. Electrical cabinet installation and modification takes only a few minutes, and after installation, it is easy to open the protective cover, so that you can quickly observe numerous targets and carry out internal condition inspection. The use of infrared windows, the user tons of uninterrupted, without interfering with the premise of equipment operation, inspection and maintenance, without special maintenance.