Both rugged built-in and surface-mounted versions in the Projective Capacitive Touch Panel Series (PCT Series) can be expanded with customer-specific mechanical switches. The type and number of switches are configured according to customer requirements. Possibilities include emergency-stop switches, start/stop switches, release buttons or an additional USB port on the front of the device. All touch panel PCs in the PCT Series share modern industrial design, durable construction and a long service life. With the state-of-the-art touch controller, the HMI systems also support multi-touch applications.