The SIMATIC HMI KTP400 Basic (6AV2123-2DB03-0AX0) is a basic control panel from Siemens’ SIMATIC HMI series, featuring key and touch operation. Its 4-inch TFT display supports 65,536 colors and is equipped with a PROFINET interface. The panel is configurable via WinCC Basic V13 or STEP 7 Basic V13 and includes open-source software provided free of charge (see enclosed CD). With a net weight of 0.458 kg and packaging dimensions of 12.80 x 19.90 x 5.20 cm, it is used in industrial automation projects, such as machine control, monitoring systems, or simple operator interfaces.