The DOP-103BQ is a Delta brand Human Machine Interface (HMI) model. HMI devices provided by Delta are typically used for human-machine interaction with equipment in automation systems, providing user-friendly operator interfaces and monitoring functions. The DOP-103BQ has some common features, a colour LCD screen, touch input communication interface, and can be used in industrial and automation environments to view and control processes and equipment. control processes and devices in industrial and automation environments.