BS-4020A industrial inspection microscope has been specially designed for inspections of various size wafers and large PCB. This microscope can provide a reliable, comfortable and precise observation experience. With perfectly performed structure, high-definition optical system and ergonomical operating system, BS-4020A realizes professional analysis and meets various needs of research and inspection of wafers, FPD, circuit package, PCB, material science, precision casting, metalloceramics, precision mould, semiconductor and electronics etc.