Portable Borescope Camera is a branch of non-destructive testing, but also a dedicated detection technology. Suitable for inspection and observation of places where high temperature, poisonous, nuclear radiation and human eyes can not directly observe (such as automobile assembly, automobile casting, engine, pipeline, mechanical parts, pressure vessel, electric power system, wind power, chemical, mechanical equipment , Railway locomotives, etc.) to achieve nondestructive testing without disassembling or destroying the assembly and stopping the operation of the equipment, which can greatly improve the detection efficiency and the safety performance of the equipment.