AEM three-phase embedded multifunctional energy meter is a smart meter designed for electric power system, mining enterprises, common facilities for energy statistics and management. The product has the advantages of high accuracy, small size and easy installation. It integrates all power parameters measurement and comprehensive power measurement and assessment management, providing power data statistics such as the past 24 hours, 31 days and 12 months. It has 31 times sub-harmonic and total harmonic content detection, switch input and relay output can realize “remote signal” and “remote control” function, and has alarm output. It has RS485 communication interface, which can select MODBUS-RTU or DL/T645-2007 protocol. This series includes 96 models and 42 models, of which 42 models also have zero-line current measurement function. This power meter can be widely used in various control systems, SCADA systems and energy management systems.