The BACnet EMI SMART METERTM is a device that measures electrical energy consumption of an AC circuit or load and transmits usage data in real-time to be analyzed. It consists of a printed circuit board, current transformers or Rogowski coils for sensing current, and a communications board containing the BACnet interface. The data is read by standard BACnet software and supports monitoring and managing energy usage for commercial, industrial, and facility applications without expensive wiring.