... station wds-620 1.with CCD camera, 2.optical vision system 3.touch screen 4.can repair ... heater can move up and down. The 3rd large area IR heater can preheat the PCB board ... function is optional. 7. High-definition CCD color optical vision system, splitting, amplification, micro-adjust and auto ... manually; 8. Without changing the magnification, the optical lens can be moved manually left and right, back ...