> For the complete documentation index, see [llms.txt](https://wimaniot.gitbook.io/wiman-communication-technologies/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wimaniot.gitbook.io/wiman-communication-technologies/communication/4g-gateways.md).

# 4G GATEWAYS

### GSM Series

* **Reliable 4G LTE Connectivity** for remote IoT and industrial monitoring applications.
* **Collects data from Modbus RTU/TCP devices**, sensors, and field equipment.
* **Secure cloud communication** using **TCP, HTTP, and MQTT protocols**.
* **Built-in intelligent data logging** to prevent data loss during network interruptions.
* **Automatic data recovery** – stored data is transmitted once the connection is restored.
* **Seamless integration with legacy Modbus devices** for modern IoT platforms.
* Ideal for **Smart Metering, Industrial Automation, Energy Monitoring, and Remote Equipment Management**.

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#### MAX SERIES

Reliable **4G/LAN** industrial gateway with dual-server logging, **Modbus RTU/TCP** support, and secure **TCP/HTTP/MQTT** connectivity for mission-critical IoT applications. [WT460- LTE-4G/LAN MAX](/wiman-communication-technologies/iot-models/max-series/wt460m-4g+lan.md)
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#### MAX SERIES

Reliable **4G/LAN** industrial gateway with dual-server logging, **Modbus RTU/TCP** support, and secure **TCP/HTTP/MQTT** connectivity for mission-critical IoT applications. [WT470 - 4G + WiFi](/wiman-communication-technologies/iot-models/max-series/wt470m-4g+wifi.md)
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#### GSM PRO SERIES

[WT400 -LTE-4GPRO](/wiman-communication-technologies/iot-models/pro-series/wt400m-lte-4gpro.md) Industrial 4G LTE gateway with secure Modbus RTU/TCP connectivity and intelligent data logging for remote IoT deployments.
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#### GSM LITE SERIES

[WT410- LTE-4GLITE](/wiman-communication-technologies/iot-models/lite-series/wt410-lte-4glite.md) Compact 4G LTE Modbus gateway designed for reliable remote monitoring with secure cloud connectivity.
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