A Power & Energy Logger is an advanced electrical monitoring device that records, measures, and analyzes energy usage over time. It continuously tracks important electrical parameters such as voltage, current, power factor, frequency, and total energy consumption. In Bangladesh, it is widely used in industries, commercial buildings, and power systems to monitor electricity usage more efficiently. This device helps engineers and facility managers understand how energy is being consumed across different machines and systems. By providing real-time and historical data, it supports energy auditing, load analysis, and performance optimization. Overall, it is a powerful tool for improving energy efficiency, reducing waste, and ensuring stable electrical performance in industrial operations.