Connects directly into Computer Network Multi-Function network kWh Meter panel-mounted kWh Meter digital LCD CT operated meter CT Operated Single/Three Phase Multifunction Meter Shows energy and electrical parameters V, A, kW, VA, var, PF and THD   96mm x 96mm x 96mm Panel Mounting These meters are designed ONLY to work with CTs. Please select the preset ratio below and add CTs if required You can order with or without CTs