The ME132 is a high-performance smart energy meter that supports precise measurement for both multi-circuit and single-circuit applications, making it suitable for use in three-phase four-wire grid systems. It is equipped with RS 485/Modbus-RTU wired protocol to ensure stable and reliable data transmis sion. With a compact module width of just 1P (18mm) and a Din-rail mounting design, it saves space and allows flexible deployment. The accompanying Rogowski coil can be easily installed by directly sleeving it onto busbars, copper bars, or cables without the need to power off or disassemble existing wiring, significantly improving construction efficiency and safety.