The AEMC Instruments Model 3945-B is a versatile power quality analyzer and data logger. It provides comprehensive measurements of voltage, current, harmonics, and power, enabling users to identify and diagnose power quality issues in industrial and commercial settings. The device features a high-resolution color LCD display for real-time data visualization, along with extensive data logging capabilities for long-term monitoring. The included DataView software facilitates data analysis, report generation, and configuration of the analyzer's functions. It is ideal for troubleshooting power quality problems, assessing energy efficiency, and ensuring the reliability of electrical systems.