en M-Bus wireless

MQTT to M-Bus Wireless Converters – Professional M-Bus and IoT Integration

An MQTT to M-Bus wireless converter is a solution that enables bidirectional data exchange between wireless M-Bus meters and devices and IoT systems operating on the MQTT protocol. Thanks to this integration, measurement data from electricity, water, gas, or heat meters can be published in real time to MQTT servers, such as SCADA platforms, BMS systems, or cloud applications.

Devices in this series (e.g., HD67931) support from 20 up to 250 wireless M-Bus devices, making them suitable both for industrial installations and large-scale building management systems. Built-in support for TLS/SSL protocols guarantees secure data transfer, which is critical in mission-critical systems and environments requiring infrastructure protection.

Secure communication and compatibility

MQTT to M-Bus wireless converters are fully compatible with IoT servers and platforms supporting the MQTT protocol. With TLS/SSL encryption, they ensure protection against unauthorized access and guarantee data integrity. This makes them suitable for critical applications such as smart energy grids, water consumption monitoring, gas distribution, and Smart City projects.

The devices are designed for easy configuration using dedicated software, enabling quick deployment in existing infrastructures. Depending on the version, different operating frequencies are supported (e.g., 868 MHz and 169 MHz), ensuring flexibility and adaptation to local requirements and radio conditions.

Main features of the converters

• Support for 20 to 250 wireless M-Bus devices depending on the model
• Data publishing from meters to MQTT servers
• TLS/SSL encrypted communication – full transmission security
• Compatibility with meters from Siemens, Kamstrup, Maddalena, Sontex and others
• Easy setup via free configuration software
• DIN rail mounting, industrial wide type B housing
• Wide power supply range 18…35V DC and 15…21V AC
• Operating temperature from -40°C to +70°C, industrial grade

Practical applications

MQTT to M-Bus wireless converters are widely used in modern building automation systems and industrial infrastructures. They enable centralized real-time monitoring of meters and measurement devices without the need for manual reading. This makes them an ideal solution for energy companies, water utilities, district heating operators, and IoT system integrators.

Using MQTT to M-Bus wireless gateways not only reduces costs associated with meter servicing but also increases the efficiency of network and facility management. They are indispensable tools for implementing Smart Grid, Smart Metering, and Smart Building projects.