Industrial License-free Band RF Gateway

ModProBus ISM842 RF Gateway products are radio modems designed for data collection, wireless communication, and remote I/O applications in various industries. They provide stable wireless communication 24/7, ensuring secure transmission in industrial license-free band communication bands using AES256 encryption. These radio modems enable communication between industrial devices that support the Modbus protocol, such as machines, PLCs, HMI panels, and industrial sensors, through RS485 and Ethernet communication ports. Additionally, they are equipped with a built-in WiFi module for easy configuration and integration into backup wireless local networks. They reduce the reliance on external controllers by supporting automatic data collection and a simplified rule engine. With a built-in I/O module that supports Modbus TCP/IP and Modbus RTU, they offer an excellent solution for remote I/O applications.

Industrial License-free Band

Operates in industrial license-free band communication bands, eliminating the need for any additional license fees for communication.

Communication Range Up to 20 km

It allows the creation of wireless coverage in remote areas thanks to its high-frequency stability radio frequency hardware.

Simple and Easy Installation

Long and complex installations are left behind. It is ready to use in a few minutes with its own built-in installation interface.

Easy Assembly and Installation

Designed for easy assembly and installation, making it a hassle-free process to set up and get started.

Automatic Reconnection

Ensuring that your device stays connected and operational even in the event of a temporary disconnection.

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Advanced inputs and outputs

Reduce your costs as you do not need to use additional PLCs in many applications with Modbus supported I/Os.

  • License-free communication band
  • 8 Digital Inputs / 4 Digital Outputs / 2 Analog Inputs
  • Automatic Data Collection
  • Modbus Master & Slave Support
  • Simplified Rule Engine Support
  • Communication Range of up to 20 km
  • Dynamic Routing
  • RF Mesh Support
Best partners using ModProBus Industrial license-free band RF Gateway
  • Samsun
  • Pirelli

Modbus TCP/IP and Modbus RTU Supported I/O Unit

ModProBus ISM842 RF Gateway can be used as a radio frequency remote I/O hardware, in addition to enabling wireless communication between industrial equipment, thanks to its built-in I/O units that support Modbus protocols.


ModProBus ISM842 RF Gateway can collect data at user-defined intervals from different ModProBus ISM842 RF Gateway devices, or devices such as PLCs and Modbus sensors connected to these devices via radio frequency. Optionally, it can transfer this data to third-party software using the MQTT protocol.

Modbus Master & Slave Support

ModProBus ISM842 RF Gateway can collect data from various devices with its Modbus Master feature, and can also be used as a gateway or remote I/O unit with Modbus Slave support.


ModProBus ISM842 RF Gateway automatically collects data from user-defined devices and performs basic mathematical operations on this data. It can write the results of these operations on itself or on another ModProBus ISM842 RF Gateway. This enables actions such as activating a digital output in a different location based on a digital input signal or transmitting data from a PLC to a remote HMI panel.


ModProBus ISM842 RF Gateway allows the definition of which gateway products the desired data should be transmitted through to reach the final destination. This enables the establishment of infrastructure for communication between non-visible points.

RF Mesh Support

The ModProBus ISM842 RF Network Gateway supports RF Mesh feature in specific communication modes, enabling the creation of RF coverage with ModProBus ISM842 RF Network Gateway products. Industrial facilities, smart city, and smart agriculture applications can establish coverage over long distances.

Power Input Voltage: 10 to 26VDC Rx: <3W Tx: <10W
Size 125mm x 103mm x 58mm
Led Indicators Pwr,Tx,Rx,RSSI,Digital Inputs, Digital Outputs
Mounting Din Rail
Casing Aluminum Alloy 6060
Operating Temperature -40 to +85 °C
Maximum Range 3dBi Dipole Antenna: 5 Km 6.5dBi Omni Directional Antenna: 20 Km
RF Frequency: 869.4 - 869.65 MHz Output Power: 12 to 26 dBm Rx Sensitivity: -124 dBm Modulation: GFSK RF Downlink/Uplink: 2.5 Kbps to 100 Kbps 
Protocols Modbus RTU: Modbus RTU Master & SlaveModbus TCP/IP : Modbus TCP/IP Server & Client*MQTT
Security Encryption: AES256
Antenna Interface: 1x SMA Female (RF) Impedance: 50 ohms                1x SMA Female (WiFi) Impedance: 50 ohms
Serial Interface: 1x RS485 / 2 Pin (Half Dublex) Protection: 15 KV HBM ESD Protection, GDT ProtectionBaud Rate: 300 bps - 115200 bps
Ethernet Interface: 1x RJ45 (10/100Mbps)
Digital Inputs Channel: 8x Isolated Digital Input Isolation Protection: 3500Vrms Input Voltage Range: 10-24VDC
Digital Outputs Channel: 4x Relay - SPST-NO (1 Form A) Maximum Contact Rating: 5A 250VAC, 3A 24VDC 
Analog Inputs Channel: 2x Analog Input 4-20mA or 0-10VDC 


  • ModProBus ISM842 RF Gateway
  • 1 x RF antenna
  • 1x WiFi antenna
  • Quick Start Guide
  • FAST IoT Platform Flyer
  • Packing Box

Ürün Kodu MQTT (Data To Server) Dijital Giriş Dijital Çıkış Analog Giriş
ModProBus-ISM-842 - 8x 4x 2x
ModProBus-ISM-842M Var 8x 4x 2x

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ModProBus ISM842 RF IoT Gateway Compatible with FAST IoT Platform

No need to waste time! Start your project right away with an end-to-end solution.

  • Device Management
  • Data Collection
  • Dashboards
  • Alarms

Everything We Do it With Love

Our main focus when creating products is centered around three core pillars: reliability, security, and user-friendliness. We firmly believe that these components are crucial for achieving success in any Internet of Things project.
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95% satisfaction rate in our pre-sales and after-sales services.

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"The process of creating an IoT device is complex, involving the integration of hardware and software. However, the results of this approach result in devices that are more secure, faster, and more user-friendly. Integrating hardware and software allows for better performance and easier maintenance of devices. Additionally, this approach enables IoT devices to be more scalable and developed more quickly. Ultimately, integrating hardware and software in IoT should be seen as an important way to create stronger and more efficient devices."

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"The success of Internet of Things (IoT) devices relies on the integration of hardware and software. This approach enables devices to be faster, more secure, and more efficient. Additionally, the integration of hardware and software allows for easier management and better performance of IoT devices."

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VP of Intel IoT Solutions
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