The GOC Series touch screen is an optical camera senosor touch technology. The whole touch module is consisted of two camera modules, contol board, reflectors, metal frame(42" up), and glass (optional). It has high resolution, sensitive, and durable characteristics. And it is compatible with Windows 7, Windows 8, and Linux for multi-touch gesture support. Our product size range is from 15" to 65" especially used in public information devices, advertising machine, and digital signage.