TPD-280U 2.8" Compact Touchpad Touch Screen HMI Controller with high resolution 2.8 inch TFT color touch screen, USB port and Real Time Clock. Communicable over RS-485 and Modbus RTU. Includes free HMIWorks software for Ladder Logic and C language programming and GUI development environment. Can fit in electrical wall outlets. Supports operating temperatures between -20 ~ +70°C (-4F ~158F).