The Wireless AC sensors are used to measure and calculate PV Inverter current (A), voltage (V), power (W) and energy (kWh), and show it on a Color Control GX and the VRM Portal. An installation will have one gateway per system and one sensor per phase. The gateway connects to the Color Control via Ethernet, and is the DECT hub for the sensors. Multiple sensors connect to 1 gateway. This three phase energy meter, has a maximum 65 A per phase. Can also be used in single phase systems.