High definition, intelligent, convenient – Q Series, adopting the latest digital high-definition image processing technology, with mega pixels and a 5.5-inch OLED big screen, to ensure clearer images. Even in strong sunlight, subtle defects can also be detected. In addition, this product adopts mechanical 360° rocker technology and replaceable insertion tube structure, with multiple camera options such as 2.2mm, 2.8mm, 3.9mm, 6mm forward or dual or interchangeable cameras. Users can choose any according to their needs. One base unit with multiple insertion tube options, customers can get the best combination at the best price to meet the needs of a variety of working conditions.