DIN Rail Power and Energy Meter, Realtime Bi-Directional Power/Energy Monitoring, 3-Phase, AcuCT Flex Series Rogowski Coil Input, 1 Relay Output, Built-In RS-485 Port with Field-Configurable Modbus RTU or BACnet MS/TP Protocols, LCD Display (Accuenergy items are non-returnable due to manufacturer policies)