The Solis S2-WL-ST-USB is the USB-port version of the Solis data logging and communication module, designed for compatible Solis inverters with an external USB logger interface. It provides reliable WiFi or LAN connectivity and transmits inverter data directly to the SolisCloud monitoring platform, allowing installers and end users to monitor system performance, view operating data, and support troubleshooting remotely through the app or web portal. Official Solis materials highlight plug-and-play installation, Bluetooth-assisted commissioning, LED status indication, and a reset / instant data-send button for convenient setup and service access.

The S2-WL-ST family is specified for up to 10 connected inverters when the inverters are first linked by RS485 daisy-chain communication. The logger supports 5-minute data collection intervals, 2.4 GHz WiFi, BLE 4.2, and wired LAN up to 100 m, while the USB version uses an external USB port with tab-lock installation. Solis also lists IP65 protection, compact dimensions of 130 × 50 × 41 mm, and a weight of 90 g for the USB model. 5 GHz WiFi is not supported.

Key benefits

• For compatible Solis inverters with USB logger port

• Dual communication via WiFi or wired LAN

• Remote monitoring through SolisCloud app and website

• Plug-and-play installation for quick commissioning

• Bluetooth nearby connection for setup and debugging

• 3 LED indicators for clear operating status display

• Reset / one-key data send for easier service and troubleshooting

• Supports multi-inverter monitoring up to 10 units via RS485 daisy-chain

• IP65 protection for dependable everyday use