In this research paper, we describe a smart outlet that we are developing and the process of designing and developing it. This smart outlet is assembled from three layers of circuit boards. The first layer installs a chip with a temperature and humidity sensor to collect real-time data, which allows us to remotely control the switch and view data such as power consumption, temperature and humidity on a computer or smartphone. The second layer is installed with HLW8012 sampling conversion device, which converts the collected voltage and current values into pulse signals and sends these pulse signals to the chip on the first layer. The third had is the power supply layer for the whole board, which provides 5V voltage for the whole board through AC-DC device. This layer will also contain fuses and circuit breakers for the safety of the whole circuit.