The Wireless AC sensors are used to measure and calculate PV Inverter
current (A), voltage (V), power (W) and energy (kWh), and will show it on a
Color Control GX and the VRM Portal. An installation will have one gateway
and one sensor per phase. The gateway connects to the Color Control via
Ethernet and is the DECT hub for the sensors. As an alternative, see also
the AC Current Sensor.