Support 4G/GPRS/WiFi/Ethernet communication methods, support RS485/RS232/TTL/USB. Suitable for various mainstream inverters. It is used to collect and record the working status and power generation of the inverter, and remotely monitor the photovoltaic power generation system through a professional platform to help users manage distributed power stations with low cost and high efficiency. Extended functions, such as Bluetooth, satellite positioning, power outage reminder, can help users to quickly configure and operate the power station on site.
| Type | SRG-3 | SRG-4 | SRW-3 | SR4G-3 | SRE-3 | SRN-4 |
| Serial communication rate | GPRS | GPRS | WiFi | 4G | LAN | NB / GSM |
| Operating Frequency | GSM850 / EGSM900 / DCS1800 / PCS1900MHz | 2.412GHz～2.484GHz | 704MHz～960MHz 1710MHz～2690MHz | 10M / 100M self-adaption | GSM900 / 1800 / 1900 | |
| Satellite positioning | —— | GPS/Beidou<15m | —— | —— | —— | —— |
| Antenna Options | External GPRS rod antenna | External WiFi rod antenna | External 4G rod antenna | —— | External antenna | |
| Data interface | RS485 / RS232 / TTL | |||||
| Working voltage | DC4.5V～DC15V | |||||
| Working power | 3W | 1.5W | 5W | 1W | 3W | |
| SIM card | SIM card / MicroSIM | —— | MicroSIM | —— | SIM card/MicroSIM | |
| Data storage | 2M Flash(2M-16M optional) | |||||
| Working temperature | —40℃～+85℃ | |||||
| Working humidity | <90℃（No condensation） | |||||
| Number of connected inverters | 1 unit | |||||
| Serial communication rate | 9600bps（1200—115200bps adjustable ） | |||||
| Data collection interval | 6min（1—15min optional） | |||||
| User profile | AT+instruction set | |||||
| Remote Services | ||||||
| APP / Bluetooth | APP / Web / Bluetooth | Serial port | Web | App | ||
| Upgrade | Remote Upgrade | |||||
| Others | Real time control, breakpoint continuation | |||||
