Elite 440/ 443 is a Multi-Line Three-Phase Digital Panel Meter for Accurate and reliable Measurement of Electrical Quantities(Voltage, current, Power, Frequency, etc., ) in industrial andcommercial applications. It has a large multi-line backlit LCDdisplay which enables four parameters to be displayed at thesame time. Modbus Communications capability allows easyintegration with energy monitoring systems. An expansionmodule can be fitted for enhanced functionality (pulseinput / output)