... Touch Screen For Iphone 4 mobile. Size: 1.8", 2.1"~12.1", 15", 17", 19", 21" touch screen, customer size touch screen. 4-Wire resistive touch screen ... demanding workplace applications. Touch screen Specifications Touch Type: 4-Wire Resistive touch screen Screen Sizes: 1.8"-21" Diagonal Cable Interface: PC Serial/COM Port ... -20º C ~ +70º C Choices of Glass Thickness: 0.7mm, 1.1mm, 2.0mm, 3.0mm, 5.5mm, ...