The EM24 is for 3 phase monitoring only.

To measure the power and energy of the whole application at the distribution box. Or to measure the output of a PV Inverter, to display the data on the Color Control GX.

The Energy Meter can be used as a:

Grid meter, and used as control input for an ESS System.
Measure the output of a PV Inverter
Measure the output of a AC Genset

The meter is connected to the Color Control GX. There are two options in its wiring:

Direct connection, either using the RS485 to USB interface with 1.8m cable length, or the 5.0m cable.
Wireless connection via Zigbee