MultiPower M850 is a low cost 96x96mm cased three phase power meter.
It measures line Voltages and Currents, Neutral Current, System Frequency, System W, A and VA Demands, System W, A and VA Maximum Demands, System Active Power, System Reactive Power, System Apparent Power, System Active Energy, System Reactive Energy and System Power Factor.

The M850 incorporates a BLUE LED display and universal power supply.

It features the option of pulsed outputs and an RS485 port using a subset of Modicon's Modbus protocol.

See also
3X and duplicated 3X Registers
3X Register Order
4X Registers