Siemens SMART digital multifunction energy meter, Multi-line LED, Class 1. Measures True RMS parameters including voltage, current, active power, reactive power, apparent power, energy, frequency, and power factor. SMPS power supply (95V to 240V AC), supports 1A/5A AC current inputs, 11V-300V (L-N) or 19V-519V (L-L) voltage inputs, Modbus RTU via RS-485, flush panel-door mounting (96×96 mm).