... type of touchscreen are specially designed to make SAW touchscreen integration easier to completely prevent dust from ... in area that can affect SAW touch screen performance. SpecificationsTechnologySurface Acoustic Wave (SAW)Resolution4096× 4096MaterialPure glassDeviation2mmLight transmission90%-92 ... non-condensingOperating Altitude3000mCertificationCE,FCC,CCCSize15, 17, 19, SAW Touch Screen panel