IoT Router / Gateway PRO4 for Industrial Use

Industrial cellular router, gateway and data concentrator developed specifically for IoT and IIoT applications

Wireless router
Wireless router
4G LTE / LTE 450
4G LTE / LTE 450
4x Ethernet
4x Ethernet
RS485 / 2 DI
MBus connection
MBus meters
DIN mount
DIN mount

Designed specifically for industrial use, the PRO4 router offers reliable, secure high-speed wireless connectivity and remote access. It enables the integration of various industrial applications such as smart metering, industrial automation, substation management or the integration of Distributed Energy Resources (DER).

It comes with all the interfaces, protocols and management functions desirable in the world of industrial automation and smart grids. It is the preferred choice for mission-critical cellular communications of many large energy companies and IoT system integrators.

Cellular routers are highly effective for the implementation of reliable and extremely secure communications networks for remote substation SCADA, distribution automation, and metering applications. The routers collect data via Ethernet, RS485 or I/O and send it to a central server through the encrypted 4G LTE cellular networks. For maximum security, OpenVPN, IPSec services and firewall are also available. For higher levels of reliability, our cellular routers may be equipped with two SIM cards (by option).

The PRO4 has a modular design, meaning that there are options for expansions. By default, it has 1 SIM card slot, 4 Ethernet ports, RS485 interface, 2 Digital Inputs, a microSD card slot, and a micro-USB port for configuration and OTG functions.

The open-source, Linux-based operating system OpenWrt® (optionally Debian) allows users to develop and run their own applications on the platform. It comes in an IP51 housing, supports DIN-rail, and the ports can be protected under sealable terminal cover.

Supports the most important industrial and network protocols like TCP/IP, Modbus TCP, Modbus RTU, Modbus Gateway, MQTT, LwM2M etc.

We also offer customization (protocols, interfaces, modules etc.) for our clients. More than 100.000 units have been sold around the world.

The PRO4 ROUTER has full remote access, monitoring and maintenance features.


Device Manager

On-demand OTA firmware and software upgrades may be remotely and securely uploaded to the cellular router from any point within the user’s network. The Windows-based Device Manager® software allows faster deployment and guarantees the secure and proper functioning of the routers. State-of-the-art management functionalities including rapid device onboarding with bulk provisioning, easy administration, in-depth visibility of device status and, its performance metrics and security issues, logical groupings of devices into hierarchical structures for mass software and firmware updates.



Thanks to our Automatic Modbus Data Acquirer System (application developed for Modbus data collection) this router can also be used as a data concentrator.

The 4G LTE router is currently our most popular product!


Main features

  • Cellular module order options: LTE Cat.1 / 3G / 2G
  • 4 Ethernet ports (RJ45, LAN, 10/100Mbit)
  • Industrial standard terminal block: RS485, 2 digital inputs
  • microSD card slot
  • micro-USB configuration port
  • Supercapacitor (against small power outages)
  • Automatic Data Acquirer System: Modbus TCP/IP Gateway (Scada connection) data sending by LwM2M, MQTT protocols
  • OpenWrt operation system, Web GUI
  • Safety, networking and management protocols
  • Remote firmware updates, configuration
  • Sealable, DIN-rail mountable IP51 enclosure



    Design and outfit

    • Plastic enclosure, fit to DIN-rail
    • Industrial standard interfaces are presented, the ports can be protected by the sealable terminal cover
    • Expansion options (see table)



    • Scada and metering systems
    • Modbus meters and measurement systems
    • Metering systems (electricity, water, gas)


    OpenWRT® system

    • Web interface, Linux CLI
    • Security: Firewall, diagnostic, monitoring of operation parameters, IEE 802.1x encryption, AES128/AES256 encryption, super-capacitor component against short power outages, remote reboot and maintainance, remote voice call, remote control
    • Protocols: DHCP, DynDNS, IP route, NAT, IPv4/IPv6, (S)FTP, (S)NTP, HTTP(S), SSHv2, IP passthrough, IPSec, OpenVPN
    • Management: SNMPv3 protocol, Device Manager® software (optional management/configuration/updates)
    • Scada Protocols: Modbus TCP / Modbus RTU



    • 4G LTE antenna (optional)
    • AC or DC power cable (optional)
    • External DC power supply (optional)
    • RS485 cable (optional)
    • OpenWrt® customized router operating system (local web configuration software)
    • 2 digital inputs (DI) (S0-type, potential-free) – optional
    • Device Manager® software


    Technical data

    M2M PRO4 Router – with AC power supply, LTE Cat.1 / 3G / 2G module options

    m2m PRO4 router

    M2M PRO4 Router – with DC power supply, LTE Cat.1 / 3G / 2G module options

    m2m PRO4 router

    Product Datasheet – M2M PRO4 Router – with AC power supply, LTE Cat.1 / 3G / 2G module options

    Product Datasheet – M2M PRO4 Router – with DC power supply, LTE Cat.1 / 3G / 2G module options

    Quick Guide

    Installation Guide

    User Manual (OpenWrt)

    UCI Command Line Reference

    EasyCwmp Command Line Reference

    License Notice – GNU General Public License Notice

    License Notice – License Notice of Vovida Software

    Firmware (2021-11-12)

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    The remote management and maintenance of an IIoT solution can be a real challenge. Improve the network availability and operational efficiency of your fleet!

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