Zytronic is the developer/manufacturer of award-winning touch sensor products, which employ an embedded sensing element, based around projected capacitive technology (PCT?) sensing. PCT offers durability, environmental stability and optical enhancement benefits to system designers of touch interactive, industrial, self-service and public access equipment. During 2012, we developed mutual PCT (MPCT?), which enables multi-user and multi touch sensing in ultra large form factor sizes up to 84″.