... , no-drift etc. ETWOTOUCH 4 points 32 inch IR multitouch screen ETwotouch CompanyGuangzhou ETWOTOUCH Electronic Equipment Co., Ltd ... surface acoustic wave(SAW) touch screen, Infrared(IR) Touch Screen, Multi touch IR touch screen, five-resistive touch screen, touch ... TUIO,WINDOWS multitouch protocol.Basic parameters:--Light transmittance: 95%-100%--Touch pressure:No need pressure,touch the surface of ...