Schneider Electric PowerLogic A9MEM3250 DIN Rail Energy Meter

Amazon

Feature-rich energy metering Simple energy monitoring compatible with Building management systems Optimize energy consumption and enable energy efficiency practices Extensive real time measurements Supports Cost management and network management applications

Radwell UK

ENERGY METER, 0.05-5 (6) AMP, 173-480 VAC, 50/60 HZ, 10 VA, 32 SAMPLES/CYCLE, LCD DISPLAY, ACTI 9 SERIES, MODBUS