... .High sensitivity 3.High stability 4.High durability 4wire touch screen, 4wire touch panel, touch screen, touch panelSurface Hardness 3HOptical Clarity 80%Operating Temperature -10C ... Faceplate Surface Anti-glare coating,glare coatingFilm Thickness 0.175mm, 0.188mmGlass Thickness 0.7mm, 1.1mm,1.8mmOperation Pressure 20 ... Resistance 20MΩ↑ DC25VSealable against dust ,water, oil , static lcd touch panel