Wire resistive touch screen is the preferred solution for low cost applications. It consists of a conductive bottom layer ITO Glass or Film) and a conductive top layer ITO Film). The two layers are suspended by many very small spacer dots. When a certain point is touched, the top layer contacts the bottom layer and a voltage charged by the controller is applied to the bottom layer's electrodes. The coordinate X axis of the touch point can be detected by measuring the voltage value thru the top ITO layer and the coordinate Y axis of the touch point can be detected in the same way by changing voltage input to the Circuiting Rating: 5V DC, 35mA Surface Hardness: 3H Light Transmission Film Film>77% Hitting Life Expectancy: Over 1 million Film+Glass>83% Scoring Life Expectancy: Over 100,000 Contact Bounce: <10ms Operating Temperature: -10 oC ~+60 oC Resolution: 4096x4096 Storage Temperature: -20 oC ~ +70 oC Linearity: 1.5%<1.0% By Request Choices of Glass Thickness: 0. 7mm, 1.1mm, 2.0mm, 3.0mm,0.55mm Operating Force: 10g~100g Choices of Glass: Normal Glass, Chemically strengthened glass