Industrial Shields GPRS/SIM Controller 19R Features equipment based on the Arduino technology Is designed for a professional use Has 17I/Os Can be expanded up to 127 modules through I2C The Industrial Shields GPRS/SIM Controller 19R is the first equipment based on the Arduino technology designed for professional use. This PLC has 17I/Os. It also contains several communication ports which provide more flexibility and control. The GPRS Controllers family offers the possibility to expand up to 127 modules through I2C, which means that you can have until 7100 Inputs / Outputs in Master-Slave connections, additionally to sensors, etc… The GPRS Controller is programmed through the USB ports. This PLC can also be programmed through Ethernet port remotely. This offers immediate access to program, maintain and control. Also you can continuously monitor the status of all the variables, inputs, outputs, etc. It is compatible with the Ardbox, M-duino and the Touchberry Pi with an instantaneous connection.