The SPI-9401-1AI device is a configurable measuring indicator designed for measuring voltage or current. The operating mode is configurable through the built-in menu using 4 buttons. It has a large 4-digit display. Additionally, the controls inform us about the status of outputs and facilitate navigation through the menu. It has 2 relay outputs, 1 voltage analog input (from -10V to 10V) and 1 current analog input (from -20mA to 20mA). The SPI-9401M-1AI version is equipped with RS485, MODBUS RTU or ASCII communication module and a mini USB connector for configuration.