HITECH Hi-tech man-machine interface, HITECH Hi-tech touch screen. HITEC HITECH HMI, HITEC HITECH Touch screen Model: PWS6800C-P (7.5-inch, 256-color), PWS-6A00C-P (10.4-inch, 256-color), PWS6600C-S (5.7-inch, 256-color), PWS6600S-S (5.7-inch, black and white), PWS6500S-S (4.7-inch, black and white), PWS6300S-S (3.7-inch, black and white, button-type).