5-Wire resistive touch screen is the preferred solution ... -20 oC ~ +70 oC Linearity: 1.5%<1.0% By RequestChoices of Glass Thickness: 0. 7mm, 1.1mm, 2.0mm, 3.0mm,0 ... .55mmOperating Force: 10g~100gChoices of Glass: Normal Glass, Chemically strengthened glassHighlight of 5-wire ... -glare, special chemical hard coating, anti-reflection. Maple touch 5-wire touch screen(from 15" to 21")