The Solis Data Logging Device RF Kit and RF Stick (SOL-RF-LINK) is Solis' radio-frequency alternative to a standard Wi-Fi or LAN data logger, giving installers a quick, wireless way to connect a Solis inverter to SolisCloud without running network cabling to the inverter itself.
The kit is supplied as two parts that work together: the RF Stick (terminal), which plugs directly into the inverter's communication port, and the RF Gateway (data logger), which connects to the home router by Ethernet cable. The two units pair over radio frequency rather than Wi-Fi, so there is no router password or network configuration to enter on the inverter side — the gateway simply talks to the stick automatically.
This makes the RF Link especially useful where the inverter is out of Wi-Fi range of the router, or for fast commissioning on residential installs: if a customer later changes their broadband router, the installer (or customer) just unplugs the RF Gateway from the old router and plugs it into the new one — the inverter connection re-establishes automatically with no reconfiguration required.
≤10
Inverters per Gateway
915 / 868 MHz
RF Working Frequency
IP65
Gateway Ingress Protection
10/100 Mbps
Ethernet Data Interface
Why Choose RF Over Wi-Fi
Because the RF Gateway and RF Stick communicate over radio rather than Wi-Fi, the pairing survives router changes automatically — there's no need to re-enter network credentials at the inverter when broadband hardware is swapped.
RF Stick Connector Variants
This RF terminal connects to the inverter via RS485 and is supplied in two connector variants — 4-Pin and USB — to suit the communication port fitted on different Solis inverter models. Confirm the correct stick variant for the inverter being commissioned before ordering.
Multi-Inverter Monitoring
A single RF Gateway supports up to 10 hand-in-hand RS485-connected inverters, making it well suited to larger residential or small commercial arrays where one Ethernet connection point can serve the whole site.
SolisCloud Integration
Data is transmitted directly to SolisCloud, Solis' PV plant monitoring platform, enabling remote performance tracking, fault alerts, and troubleshooting from anywhere with an internet connection.
One-Key Commissioning
A RESET button allows a one-key data send for convenient on-site debugging, and one-key inverter address assignment speeds up commissioning on multi-inverter systems.
Bluetooth Nearby Setup
Supports Bluetooth nearby connection for local configuration and debugging via the Solis app, without needing to be on the same network as the gateway during setup.
Adjustable Data Reporting
Data collection intervals are adjustable from 1 to 15 minutes (5-minute default), giving installers control over monitoring granularity versus data usage.
Stable, Wide-Range RF Link
Solis states the RF communication link is more stable and offers a wider effective range than comparable short-range wireless alternatives, with a rated free-field range of 200 m between Stick and Gateway.
Weatherproof Gateway Housing
The RF Gateway carries an IP65 ingress protection rating, supporting installation in a wider range of site conditions.
Status Indicator LED
A built-in status indicator shows working state at a glance, helping installers confirm a healthy link without needing a laptop on site.
Communication
| Supported Device Type |
Solis inverter |
| Number of Connected Inverters |
Up to 10 (RS485 hand-in-hand connection) |
| Data Collection Interval |
5 minutes default (adjustable 1–15 minutes) |
| RF Stick Communication Interface |
External 4-Pin port or External USB port |
| Gateway Data Interface |
Adaptive 10/100 Mbps Ethernet |
| Configuration Method |
App / Web |
| Working Frequency |
915 MHz (Stick) / 868 MHz (Gateway) |
| Serial Communication Speed |
9,600 bps |
| Effective Communication Distance |
200 m (free-field conditions) |
Electrical
| Operating Voltage |
DC 5 V (±5%) |
| Operating Power Consumption |
≤5 W |
Environmental
| Operating Ambient Temperature |
−25°C to +65°C |
| Operating Humidity |
5%–95% RH, non-condensing |
| Storage Temperature |
−40°C to +70°C |
| Storage Humidity |
<40% RH |
| Maximum Operating Altitude |
4,000 m |
| Protection Degree |
IP65 (RF Stick) / — (Gateway, indoor use) |
Mechanical
| Dimensions – RF Stick (4-Pin) |
128 × 50 × 34 mm |
| Dimensions – RF Stick (USB) |
115 × 50 × 34 mm |
| Dimensions – RF Gateway |
90 × 90 × 23 mm |
| Installation Method – RF Stick (4-Pin) |
External insert with twist lock |
| Installation Method – RF Stick (USB) |
External insert with tab lock |
| Weight – RF Stick (4-Pin) |
79 g |
| Weight – RF Stick (USB) |
65 g |
| Weight – RF Gateway |
60 g |
Compliance
| Certification |
CE, RoHS, REACH |
RF Link Component Variants
| Component |
Model |
Connector Type |
Weight |
| RF Stick (Terminal) |
S2-RF-ST-4Pin |
4-Pin, twist lock |
79 g |
| RF Stick (Terminal) |
S2-RF-ST-USB |
USB, tab lock |
65 g |
| RF Gateway (Data Logger) |
S2-RF-Gateway |
Ethernet (router-side) |
60 g |
Installation Note
Installation and commissioning should be carried out by a qualified installer in accordance with the inverter manufacturer's instructions and local electrical regulations. The RF Stick connects directly to the inverter's communication port — always isolate the inverter as instructed in the manufacturer's manual before fitting or removing accessories.
What does the Solis RF Kit and RF Stick actually do?
It provides a wireless alternative to a standard Solis Wi-Fi or LAN data logger. The RF Stick plugs into the inverter and sends data by radio frequency to the RF Gateway, which is wired to the home router by Ethernet and forwards data to SolisCloud over the internet.
Do I need to configure Wi-Fi settings on the inverter?
No. Because the Stick and Gateway communicate over a dedicated RF link rather than the home Wi-Fi network, there's no router password to enter at the inverter. The Gateway handles the internet connection via its Ethernet cable to the router.
How many inverters can one RF Gateway support?
Up to 10 inverters can be connected to a single RF Gateway, provided the inverters are hand-in-hand connected via RS485.
What happens if I change my broadband router?
Simply unplug the RF Gateway from the old router and plug it into the new one. The RF pairing with the Stick is unaffected, so the system reconnects automatically with no further setup.
Which RF Stick connector do I need — 4-Pin or USB?
This depends on the communication port fitted to the specific Solis inverter model being commissioned. Check the inverter's port type before ordering, as the 4-Pin and USB variants are not interchangeable.
Can the RF Stick and Gateway be configured remotely?
Initial setup and debugging can be carried out via the Solis app using Bluetooth nearby connection, and ongoing configuration is managed through the App/Web interface once connected to SolisCloud.
