... Touch Screen 1. drag, draw-line, rotate, zoom in/out 2.Withstands severe environments 3.Stable, no-drift etc. ETWOTOUCH 10 ... surface acoustic wave(SAW) touch screen, Infrared(IR) Touch Screen, Multi touch IR touch screen, five-resistive touch screen, touch monitor, kiosk,, ... with a physical object. Since every infrared LED is independent, the touch screen is able to achieve positioning by analyzing ...