This product is an industrial-grade high-precision dual-power acquisition module, integrating a high-performance electrical energy metering core and industrial communication interfaces. The module can accurately measure all key electrical parameters in single-phase AC lines and realize reliable data transmission through the 485 communication interface. Two channels of relays can freely control the on-off of the output, and a comprehensive isolation protection design is adopted to ensure stable operation in complex industrial electromagnetic environments. It is an ideal acquisition unit for constructing automated acquisition and testing systems and intelligent power distribution monitoring.