The AEMC PEL 105 is a waterproof, IP67-rated power logger housed in a durable case, suitable for outdoor use and pole mounting. It is ideal for electricians, engineers, and contractors conducting building and system monitoring, energy audits, and power compliance, including NEC article 220.87. The device features five voltage and four current measurement inputs, capable of measuring volts, amps, watts, VARs, kWh, power factor, and harmonics up to the 50th order. It supports wireless configuration and data capture through an Android app via Wi-Fi and Bluetooth, allowing safe operation from a distance without PPE. Connectivity options also include USB, LAN, and Ethernet. Powered either from phase inputs up to 1000VAC or from a wall receptacle, it offers user-selectable storage rates and demand intervals. The device can be configured via the front panel, DataView software, or the Android app. It automatically recognizes connected current sensors/probes (1000V CAT IV) and meets the safety and performance standards for electrical measurement. The system aids in efficiency analysis, energy cost allocation, peak demand tracking, and system reliability verification, supporting energy savings and system upgrades in high-rise or office buildings.