Led monitor touch screen monitor screen size 15 inches max resolution 1 366 x 768 pixel response time 16 ms aspect ratio 169 contrast ratio typical 3001 brightness 220 cdm widescreen dot pitch 0 243 mm viewing angle 8040 pixel density 10447 ppi monitor connections usb rs232c convenience features multilingual osd wall mountable cable management display surface led backlight vesa norm 75 x 75 frame colour black power consumption standby