A power meter, exemplified by the EngyBrick System, is an essential component in modern energy management and distribution automation. It is used for monitoring electrical parameters such as voltage, current, and harmonics in real-time, facilitating efficient power usage and enhancing system reliability. With its modular design and easy installation, it significantly reduces operational costs and simplifies maintenance. The EngyBrick System, with its capability for full power monitoring and harmonic analysis, is ideal for applications ranging from industrial distribution and energy management systems to intelligent building engineering and power plant auxiliary systems. Its use ensures optimized energy consumption and improved operational efficiency across various sectors.