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Solis S5 Wi-Fi Data Logger 4-Pin S5-WiFi-ST-4Pin Dual-Band 2.4GHz 5GHz Bluetooth BLE5 SolisCloud
The Solis S5 Wi-Fi Data Logger (4-Pin) (model S5-WiFi-ST-4Pin) is a compact monitoring dongle for Solis 4G, 5G and S5 series inverters with a 4-pin COM port. It connects via your home Wi-Fi to SolisCloud and the SolisCloud app (iOS and Android), uploading performance data every 5 minutes for real-time monitoring, fault alerts and remote system management. Unlike earlier generations, the S5 supports both 2.4 GHz and 5 GHz Wi-Fi (802.11b/g/n and 802.11a/n), resolving connection failures caused by dual-band routers. Bluetooth BLE 5.0 enables local Wi-Fi configuration directly from the SolisCloud app. Supports up to 10 Solis inverters chained via RS485. IP65. Dimensions: 128 × 50 × 34 mm, 80 g. 2-year warranty.
Dual-Band
2.4+5 GHz
BLE 5.0
Bluetooth
10 inv.
Per Logger
5 min
Data Interval
IP65
Protection
2-Year
Warranty
ℹ 4-Pin COM port compatibility: Compatible with Solis 4G, 5G and S5 series (4-pin COM port). S6 series uses a USB port and needs a USB logger or adapter. Check the Solis compatibility guide for your specific model.
Key Features
Dual-Band Wi-Fi — 2.4 GHz and 5 GHz, Solves Router Compatibility Issues
A persistent problem with earlier single-band Wi-Fi dongles is connection failure when a router broadcasts a combined 2.4/5 GHz SSID (band steering). BT Hubs and modern ISP-supplied routers commonly do this, causing 2.4 GHz-only devices to attempt 5 GHz and fail. The S5 supports both 802.11b/g/n (2.4 GHz) and 802.11a/n (5 GHz), so it connects reliably regardless of router configuration. No need to split router bands or create a separate 2.4 GHz SSID.
2.4 GHz Wi-Fi5 GHz Wi-FiDual-band routers supported
Bluetooth BLE 5.0 — Local Configuration Without Network Access
Wi-Fi credentials are entered via the SolisCloud app over BLE 5.0. This eliminates the AP mode setup sequence of older dongles, where the phone must temporarily disconnect from its own Wi-Fi to join the dongle AP. BLE 5.0 provides faster pairing and more reliable local connections.
BLE 5.0No AP mode neededBluetooth Wi-Fi setup
Up to 10 Inverters on One Logger via RS485
Up to 10 Solis inverters can be chained via RS485 daisy-chain and monitored through a single S5 logger. Each inverter must have a unique RS485 address set on its display. All inverters appear as a single plant in the SolisCloud app.
Up to 10 invertersRS485 chainSingle logger/plant
Three LED Status Indicators — Fast On-Site Diagnosis
Three dedicated LEDs cover: power/device status, inverter (RS485) communication, and internet/server connection. Each shows: flashing (trying to connect), solid (connected), or off. This allows rapid diagnosis of whether a monitoring failure is Wi-Fi, server or inverter-side — without opening the app.
3 LEDsPower / RS485 / Internet
RESET Button — Immediate Data Push or Factory Reset
A short press triggers an immediate data upload to SolisCloud, confirming connectivity during commissioning. A long press (hold until all LEDs flash) performs a factory reset.
Short = data pushLong = factory reset
IP65 — Suitable for All Installation Environments
IP65 protection: dust-tight and water-jet resistant. Operating range −30°C to +65°C, up to 95% relative humidity. Compatible with outdoor, garage, loft and unheated enclosure locations.
IP65−30°C to +65°C95% RH
SolisCloud — Free Real-Time Monitoring and Remote Alerts
Data uploads every 5 minutes to SolisCloud. The platform and SolisCloud app (iOS and Android) provide: live power and yield, cumulative totals, fault notifications and (where supported) remote setting changes. Installer multi-site management is available for trade accounts. Standard residential monitoring is free.
Free monitoring5-min dataRemote alertsiOS + Android
Technical Specifications
| Connectivity | |
| Wi-Fi (2.4 GHz) | 802.11b/g/n |
| Wi-Fi (5 GHz) | 802.11a/n |
| Bluetooth | BLE 5.0 |
| Inverter Communication | RS485 (Modbus RTU) |
| Data | |
| Upload Interval | 5 minutes |
| Platform | SolisCloud |
| App | SolisCloud (iOS and Android) |
| Multi-Inverter | |
| Max Inverters per Logger | 10 (RS485 daisy-chain) |
| Configuration | |
| Wi-Fi Setup | Bluetooth via SolisCloud app / browser (AP mode) |
| Power | |
| Operating Voltage | DC 5V (±5%) |
| Power Consumption | ≤2 W |
| Physical | |
| Dimensions (L×W×H) | 128 × 50 × 34 mm |
| Weight | 80 g |
| Indicators | 3 × LED (power, RS485, internet) |
| Buttons | 1 × RESET |
| Environment | |
| Protection | IP65 |
| Operating Temperature | −30°C to +65°C |
| Operating Humidity | 5– 95% RH (non-condensing) |
| Storage Temperature | −40°C to +70°C |
| Max Altitude | 4,000 m |
| Compatibility | |
| Compatible Inverters | All Solis 4G, 5G and S5 series with 4-pin COM port |
| Not Compatible | Solis S6 series (USB port — needs USB logger or 4-pin-to-USB adapter) |
| Warranty and Certification | |
| Warranty | 2 years |
| Certifications | CE, FCC |
| Manufacturer | Ginlong Technologies Co., Ltd (Solis) |
Frequently Asked Questions
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Product Information
Product Information
Shipping & Returns
Shipping & Returns
Solis S5 Wi-Fi Data Logger 4-Pin S5-WiFi-ST-4Pin Dual-Band 2.4GHz 5GHz Bluetooth BLE5 SolisCloud
Solis S5 Wi-Fi Data Logger 4-Pin S5-WiFi-ST-4Pin Dual-Band 2.4GHz 5GHz Bluetooth BLE5 SolisCloud
The Solis S5 Wi-Fi Data Logger (4-Pin) (model S5-WiFi-ST-4Pin) is a compact monitoring dongle for Solis 4G, 5G and S5 series inverters with a 4-pin COM port. It connects via your home Wi-Fi to SolisCloud and the SolisCloud app (iOS and Android), uploading performance data every 5 minutes for real-time monitoring, fault alerts and remote system management. Unlike earlier generations, the S5 supports both 2.4 GHz and 5 GHz Wi-Fi (802.11b/g/n and 802.11a/n), resolving connection failures caused by dual-band routers. Bluetooth BLE 5.0 enables local Wi-Fi configuration directly from the SolisCloud app. Supports up to 10 Solis inverters chained via RS485. IP65. Dimensions: 128 × 50 × 34 mm, 80 g. 2-year warranty.
Dual-Band
2.4+5 GHz
BLE 5.0
Bluetooth
10 inv.
Per Logger
5 min
Data Interval
IP65
Protection
2-Year
Warranty
ℹ 4-Pin COM port compatibility: Compatible with Solis 4G, 5G and S5 series (4-pin COM port). S6 series uses a USB port and needs a USB logger or adapter. Check the Solis compatibility guide for your specific model.
Key Features
Dual-Band Wi-Fi — 2.4 GHz and 5 GHz, Solves Router Compatibility Issues
A persistent problem with earlier single-band Wi-Fi dongles is connection failure when a router broadcasts a combined 2.4/5 GHz SSID (band steering). BT Hubs and modern ISP-supplied routers commonly do this, causing 2.4 GHz-only devices to attempt 5 GHz and fail. The S5 supports both 802.11b/g/n (2.4 GHz) and 802.11a/n (5 GHz), so it connects reliably regardless of router configuration. No need to split router bands or create a separate 2.4 GHz SSID.
2.4 GHz Wi-Fi5 GHz Wi-FiDual-band routers supported
Bluetooth BLE 5.0 — Local Configuration Without Network Access
Wi-Fi credentials are entered via the SolisCloud app over BLE 5.0. This eliminates the AP mode setup sequence of older dongles, where the phone must temporarily disconnect from its own Wi-Fi to join the dongle AP. BLE 5.0 provides faster pairing and more reliable local connections.
BLE 5.0No AP mode neededBluetooth Wi-Fi setup
Up to 10 Inverters on One Logger via RS485
Up to 10 Solis inverters can be chained via RS485 daisy-chain and monitored through a single S5 logger. Each inverter must have a unique RS485 address set on its display. All inverters appear as a single plant in the SolisCloud app.
Up to 10 invertersRS485 chainSingle logger/plant
Three LED Status Indicators — Fast On-Site Diagnosis
Three dedicated LEDs cover: power/device status, inverter (RS485) communication, and internet/server connection. Each shows: flashing (trying to connect), solid (connected), or off. This allows rapid diagnosis of whether a monitoring failure is Wi-Fi, server or inverter-side — without opening the app.
3 LEDsPower / RS485 / Internet
RESET Button — Immediate Data Push or Factory Reset
A short press triggers an immediate data upload to SolisCloud, confirming connectivity during commissioning. A long press (hold until all LEDs flash) performs a factory reset.
Short = data pushLong = factory reset
IP65 — Suitable for All Installation Environments
IP65 protection: dust-tight and water-jet resistant. Operating range −30°C to +65°C, up to 95% relative humidity. Compatible with outdoor, garage, loft and unheated enclosure locations.
IP65−30°C to +65°C95% RH
SolisCloud — Free Real-Time Monitoring and Remote Alerts
Data uploads every 5 minutes to SolisCloud. The platform and SolisCloud app (iOS and Android) provide: live power and yield, cumulative totals, fault notifications and (where supported) remote setting changes. Installer multi-site management is available for trade accounts. Standard residential monitoring is free.
Free monitoring5-min dataRemote alertsiOS + Android
Technical Specifications
| Connectivity | |
| Wi-Fi (2.4 GHz) | 802.11b/g/n |
| Wi-Fi (5 GHz) | 802.11a/n |
| Bluetooth | BLE 5.0 |
| Inverter Communication | RS485 (Modbus RTU) |
| Data | |
| Upload Interval | 5 minutes |
| Platform | SolisCloud |
| App | SolisCloud (iOS and Android) |
| Multi-Inverter | |
| Max Inverters per Logger | 10 (RS485 daisy-chain) |
| Configuration | |
| Wi-Fi Setup | Bluetooth via SolisCloud app / browser (AP mode) |
| Power | |
| Operating Voltage | DC 5V (±5%) |
| Power Consumption | ≤2 W |
| Physical | |
| Dimensions (L×W×H) | 128 × 50 × 34 mm |
| Weight | 80 g |
| Indicators | 3 × LED (power, RS485, internet) |
| Buttons | 1 × RESET |
| Environment | |
| Protection | IP65 |
| Operating Temperature | −30°C to +65°C |
| Operating Humidity | 5– 95% RH (non-condensing) |
| Storage Temperature | −40°C to +70°C |
| Max Altitude | 4,000 m |
| Compatibility | |
| Compatible Inverters | All Solis 4G, 5G and S5 series with 4-pin COM port |
| Not Compatible | Solis S6 series (USB port — needs USB logger or 4-pin-to-USB adapter) |
| Warranty and Certification | |
| Warranty | 2 years |
| Certifications | CE, FCC |
| Manufacturer | Ginlong Technologies Co., Ltd (Solis) |
Frequently Asked Questions
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$33.08
Solis S5 Wi-Fi Data Logger 4-Pin S5-WiFi-ST-4Pin Dual-Band 2.4GHz 5GHz Bluetooth BLE5 SolisCloud—
$33.08
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Solis S5 Wi-Fi Data Logger (4-Pin) (model S5-WiFi-ST-4Pin) is a compact monitoring dongle for Solis 4G, 5G and S5 series inverters with a 4-pin COM port. It connects via your home Wi-Fi to SolisCloud and the SolisCloud app (iOS and Android), uploading performance data every 5 minutes for real-time monitoring, fault alerts and remote system management. Unlike earlier generations, the S5 supports both 2.4 GHz and 5 GHz Wi-Fi (802.11b/g/n and 802.11a/n), resolving connection failures caused by dual-band routers. Bluetooth BLE 5.0 enables local Wi-Fi configuration directly from the SolisCloud app. Supports up to 10 Solis inverters chained via RS485. IP65. Dimensions: 128 × 50 × 34 mm, 80 g. 2-year warranty.
Dual-Band
2.4+5 GHz
BLE 5.0
Bluetooth
10 inv.
Per Logger
5 min
Data Interval
IP65
Protection
2-Year
Warranty
ℹ 4-Pin COM port compatibility: Compatible with Solis 4G, 5G and S5 series (4-pin COM port). S6 series uses a USB port and needs a USB logger or adapter. Check the Solis compatibility guide for your specific model.
Key Features
Dual-Band Wi-Fi — 2.4 GHz and 5 GHz, Solves Router Compatibility Issues
A persistent problem with earlier single-band Wi-Fi dongles is connection failure when a router broadcasts a combined 2.4/5 GHz SSID (band steering). BT Hubs and modern ISP-supplied routers commonly do this, causing 2.4 GHz-only devices to attempt 5 GHz and fail. The S5 supports both 802.11b/g/n (2.4 GHz) and 802.11a/n (5 GHz), so it connects reliably regardless of router configuration. No need to split router bands or create a separate 2.4 GHz SSID.
2.4 GHz Wi-Fi5 GHz Wi-FiDual-band routers supported
Bluetooth BLE 5.0 — Local Configuration Without Network Access
Wi-Fi credentials are entered via the SolisCloud app over BLE 5.0. This eliminates the AP mode setup sequence of older dongles, where the phone must temporarily disconnect from its own Wi-Fi to join the dongle AP. BLE 5.0 provides faster pairing and more reliable local connections.
BLE 5.0No AP mode neededBluetooth Wi-Fi setup
Up to 10 Inverters on One Logger via RS485
Up to 10 Solis inverters can be chained via RS485 daisy-chain and monitored through a single S5 logger. Each inverter must have a unique RS485 address set on its display. All inverters appear as a single plant in the SolisCloud app.
Up to 10 invertersRS485 chainSingle logger/plant
Three LED Status Indicators — Fast On-Site Diagnosis
Three dedicated LEDs cover: power/device status, inverter (RS485) communication, and internet/server connection. Each shows: flashing (trying to connect), solid (connected), or off. This allows rapid diagnosis of whether a monitoring failure is Wi-Fi, server or inverter-side — without opening the app.
3 LEDsPower / RS485 / Internet
RESET Button — Immediate Data Push or Factory Reset
A short press triggers an immediate data upload to SolisCloud, confirming connectivity during commissioning. A long press (hold until all LEDs flash) performs a factory reset.
Short = data pushLong = factory reset
IP65 — Suitable for All Installation Environments
IP65 protection: dust-tight and water-jet resistant. Operating range −30°C to +65°C, up to 95% relative humidity. Compatible with outdoor, garage, loft and unheated enclosure locations.
IP65−30°C to +65°C95% RH
SolisCloud — Free Real-Time Monitoring and Remote Alerts
Data uploads every 5 minutes to SolisCloud. The platform and SolisCloud app (iOS and Android) provide: live power and yield, cumulative totals, fault notifications and (where supported) remote setting changes. Installer multi-site management is available for trade accounts. Standard residential monitoring is free.
Free monitoring5-min dataRemote alertsiOS + Android
Technical Specifications
| Connectivity | |
| Wi-Fi (2.4 GHz) | 802.11b/g/n |
| Wi-Fi (5 GHz) | 802.11a/n |
| Bluetooth | BLE 5.0 |
| Inverter Communication | RS485 (Modbus RTU) |
| Data | |
| Upload Interval | 5 minutes |
| Platform | SolisCloud |
| App | SolisCloud (iOS and Android) |
| Multi-Inverter | |
| Max Inverters per Logger | 10 (RS485 daisy-chain) |
| Configuration | |
| Wi-Fi Setup | Bluetooth via SolisCloud app / browser (AP mode) |
| Power | |
| Operating Voltage | DC 5V (±5%) |
| Power Consumption | ≤2 W |
| Physical | |
| Dimensions (L×W×H) | 128 × 50 × 34 mm |
| Weight | 80 g |
| Indicators | 3 × LED (power, RS485, internet) |
| Buttons | 1 × RESET |
| Environment | |
| Protection | IP65 |
| Operating Temperature | −30°C to +65°C |
| Operating Humidity | 5– 95% RH (non-condensing) |
| Storage Temperature | −40°C to +70°C |
| Max Altitude | 4,000 m |
| Compatibility | |
| Compatible Inverters | All Solis 4G, 5G and S5 series with 4-pin COM port |
| Not Compatible | Solis S6 series (USB port — needs USB logger or 4-pin-to-USB adapter) |
| Warranty and Certification | |
| Warranty | 2 years |
| Certifications | CE, FCC |
| Manufacturer | Ginlong Technologies Co., Ltd (Solis) |
Frequently Asked Questions
Related Products
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Three-in-one Wi-Fi + LAN + Bluetooth for Growatt inverters
SolaX Pocket WiFi V3.0
Cloud monitoring dongle for SolaX inverters
Growatt MIC 1000TL-X (AF)
1kW Growatt inverter with AFCI and DC switch
Projoy PEDS DC Isolator
DC isolator for array-level PV system safety
