4-DIN single and 3phase import and export MID approved. The SMARTRail X835100-MID is a 100Amp meter with 25mmsq terminals. It has one fixed 2.5Wh pulse and a second selectable pulse. Import and export registers measure energy in both directions, plus a total sum energy register. RS485 Modbus 2400-38400Baud. Backlit display.