The Jackery smart meter is an intelligent three-phase electricity metre for precise monitoring and control of energy flows in the household. In combination with the SolarVault system, it enables real-time recording of grid import and feed-in, as well as optimised self-consumption control. Through integration into the energy management system, the smart meter supports functions such as zero feed-in and intelligent load distribution. The compact design for DIN rail mounting allows easy installation in the fuse box and ensures seamless integration into existing power systems. Highlights