Abstract
This article presents the designing of a smart device to monitor power supply in workshops, buildings or factories. The smart device is built to be monitored primarily by a 7-inch touch screen designed with an intuitive monitoring interface with high resolution, large memory, capable of operating logs, alarm history,... for a long time. In addition, this screen also acts as a VNC Server. By setting up during designing period and internet modem settings, users can monitor and control from anywhere with 3G or Wifi network just by using a mobile phone with Android or IOS platform.