Portable Digital Borescope can inspect and observe in the place which is high temperature, toxic, nuclear radiation and the human eye can’t be directly observed , mainly used in the automobiles, aerospace engines, pipelines, mechanical parts and so on. And  can test nondestructively under the  situation of no-demolishing ,no-damaging and no-working of the equipment. widely used in aerospace, automotive, shipbuilding, electricity, chemistry, electric power, gas, atomic energy, civil construction and other modern industrial core of the various departments. Industry Borescope can be connected with camera, video camera and electronic computer, be composed of the system which can take picture , photograph and deal with the images, thereby, surveillance, recording, storage and image analysis of the view target.