Suitable for on/off-grid photovoltaic systems. Our software is customized according to customers' requirements regarding data collection. Advantage: * Long communication distance. The communication and transmission distance between the gateway and the inverter terminal can be as long as 8 kilometers (In an open and ideal area); * It is mainly transmitted through the low-frequency and wide-area wireless IoT(such as LoRaWAN) networks, the signal is more stable, data transmission frequency could be customized, such as every hour, once a day etc. * The data transmission between the inverter and the gateway does not require a data card (2G/3G/4G), and the data transmission does not require traffic charges, which saves data communication costs. * The operation of the monitoring system is not affected by the development of communication technology. No matter the communication technology is 2G, 3G, 4G, or 5G or even higher level, our system can operate stably.