Schneider Electric HMISTO715 This Magelis STO small touchscreen operator interface (HMI) is supplied with 12V to 24V DC, has a 4.3" color TFT LCD display with, 480 x 272 pixels and 26MB EPROM. It also has 1 host + 1 mini-B USB ports and 1 RS232C / RS485 port. It is ideal for optimized information and communication with automation systems in industry and infrastructure such as compact machines, handling systems, food & beverage machines and pharmaceutical industry. The screen displays color graphic pages. Its RS485 host port makes it ideal to supervise and control simple systems and machines. We are dedicatedly involved in providing an excellent quality products at Electrihub.