Touch screen monitor led monitor accutouch technology screen size 17 inches max resolution 1 280 x 1 024 pixel response time 30 ms aspect ratio 54 contrast ratio typical 8001 brightness 200 cdm dot pitch 0 263 mm viewing angle 170160 pixel density 9642 ppi horizontal frequency range 31 5 80 khz vertical frequency range 56 75 hz number of vga inputs 1 monitor connections rs232c usb ergonomic properties tilt function convenience feature