Three phase electrical network power quality detection device, provide energy consumption and generate; THD (Total Harmonic Distortion); Harmonic individual data reading. Build-in 4 tariffs energy logger function, with onboard memory can record last three month energy data, free to set max 12 segment record period, can be use as a commercial billing unit. Application ·Applied to the control of general switch boards and low, medium and high voltage connection points. ·Harmonic analyze. ·Remote data reading. ·Alarm station with voltage-free digital inputs. Features ·Class 0.5S power and energy ·Current measuring .../5 or .../1 A ·Backlit LCD display ·Expandable input / output modules (up to 3 modules) ·With RJ45 Ethernet port support Modbus-TCP Communications ·With 2 channel Pulse Output (PO) for active energy&reactive energy counting ·Optional 1 channel Analog Output (AO) ·Optional 4 channel Digital Input (DI) and 2 channel Digital Output (DO) ·Record and read multi- tariffs ratio, Up to 3 months ·ITF Technology: galvanic insulation protection inputs outputs ·Universal series power supply (85-265VAC/DC)