Data loggers
Solis S1-W4G-ST 4G data logger
Solis S1-W4G-ST (4-pin / USB) is a self-contained data logger supporting 4G (LTE) mobile connectivity and Wi-Fi. It is intended for reliable monitoring of Solis solar and hybrid inverters at remote sites with no wired internet or stable Wi-Fi.
Models
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Overview
Solis S1-W4G-ST is a combined wireless monitoring module that harnesses high-speed 4G (LTE) networks with the option of connecting over Wi-Fi. It is available in two versions (4Pin and USB), guaranteeing Plug & Play compatibility with the various Solis grid-tied and hybrid inverter series.
The device is an ideal solution for remote sites — industrial zones, farms, filling stations, holiday villages or new-build projects with no local Wi-Fi or wired internet. Once a mobile operator's SIM card is installed, the data logger automatically establishes a connection with the SolisCloud platform and transmits generation, grid status and battery operation data in real time.
Solis S1-W4G-ST comes in a moisture-resistant, UV-stable enclosure for outdoor use, features built-in memory that retains data during carrier network outages, and supports over-the-air (OTA) firmware updates and configuration via the mobile app.
Key specifications
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Application
For home, For business and commerce
Key features
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Wi-Fi and 4G connectivity support
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Status indicator for convenient display of operating status
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RESTART button — one-touch data upload for convenient commissioning S1-W4G-ST (4 Pin) Intelligent monitoring solution - S1-W4G-ST PV PV PV Supports 1 to 10 connections Solis inverter DC
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Fault alarms and real-time monitoring
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Support for Bluetooth connection and commissioning
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Plug and play, fast installation
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Supports data recovery for up to 30 days of interrupted transmission for a single inverter S1-W4G-ST (USB) SolisCloud PV module digital control system Wi-Fi 4G Router S1-W4G-ST Internet RS485 communication cable Communication
Technical specifications
Models
SKU: S1-W4G-ST (4 Pin) S1-W4G-ST (4 Pin)
Communication
- Supported device type
- Solis inverter
- Number of connected inverters
- ≤ 10
- Data collection intervals
- 5 minutes
- Status indicator
- 3 LED indicators
- Communication interface
- External 4-pin port
- Communication interface
- External USB port
- Wireless communication
- Mobile network: 4G/3G/2G, LTE-FDD: B1/B3/B5/B7/B8/B20, LTE-TDD: B38/B40/B41,
- Max. apparent output power
- Mobile network: LTE&WCDMA bands: 23 dBm, GSM850/EGSM900: 33 dBm,
- Configuration method
- APP / WEB
- Electrical — operating voltage
- DC 5 V (+ / -5%)
- Typical power consumption
- 3 W
- Environment — operating temperature
- -30 ~ +65°C
- Operating humidity
- 5% - 95% relative humidity, non-condensing
- Storage temperature
- -40 ~ +70°C
- Storage humidity
- < 40%
- Max. altitude above sea level
- 4000 m
- Ingress protection (IP)
- IP65
- Mechanical — dimensions (L × W × H)
- 128 × 50 × 34 mm
- Mechanical — dimensions (L × W × H)
- 113 × 50 × 34 mm
- Mounting method
- External insert + rotary lock
- Mounting method
- External insert + tab latch
- Weight
- 80 g
- Weight
- 65 g
- Other certification
- CE, FCC
- Inverters must be interconnected via RS485.
- ② 5 GHz Wi-Fi networks are not supported.
Documentation and certificates
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DownloadDatasheet
4G реєстратор даних Solis S1-W4G-ST.pdf
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DownloadUser manual 1
4G реєстратор даних Solis S1-W4G-ST_інструкція1.pdf
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Download
User manual 2
4G реєстратор даних Solis S1-W4G-ST_інструкція2.pdf
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DownloadCertificate 1
4G реєстратор даних Solis S1-W4G-ST_сертифікат1.pdf
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Download
Certificate 2
4G реєстратор даних Solis S1-W4G-ST_сертифікат2.pdf
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Download
Certificate 3
4G реєстратор даних Solis S1-W4G-ST_сертифікат3.pdf
Frequently asked questions
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Start from the site's average daily consumption and the peak load the inverter has to carry in off-grid mode. The power range of each modification and the recommended PV array size for it are listed in the product card under "Key specifications" — for a precise selection, contact a Solis dealer or use the form below.
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The list of validated batteries is published on the product page — in the compatible-equipment section, where one has already been compiled for that model. The voltage range (LV or HV, depending on the series) is stated in the technical specifications either way. If there is no list, or the battery you need is not on it, contact the Solis Ukraine technical department — compatibility should be confirmed separately.
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Most Solis hybrid and off-grid inverters support connecting a generator with automatic start-up when the battery is discharged. Whether a specific model has this function, and how it is wired, is stated under "Key features" and in the "Technical specifications" table of the product card.
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It depends on the series: single-phase models are designed for a 220 V grid, three-phase models for 380/400 V. The exact connection type for a given product is stated in the "Grid phases" card under "Key specifications".
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Solis equipment carries the manufacturer's warranty, which in Ukraine is administered by official dealers and authorised service centres. The exact term and conditions are stated on the warranty card and on the device's rating plate — for registration and the claim procedure, see the Support section.
Didn't find your answer?
The Solis Ukraine technical department advises on equipment compatibility, wiring diagrams and system configuration.