... screen for flat LCD,4mm clear glass,transducer bevel mounted,water-proof type. Technology: Surface Acoustic WaveSize: 17inch, 4:3 ( ... from 7"-47"are available)Feature: Anti-water, (anti-glare,anti-dust,vandal-proof and standard are available ... ,irrelevant with the size of the touch panelMaterial: pure glassLight Transmission: 90% 92%Accuracy: <2mm0.080 inchDurability: Scratch-free; More ...