RELAY. 100% M-BUS competence
made in Paderborn

Economical collection of consumption data.

We are one of Europes leading manufacturers of all kind of M-Bus components. Our range of different masters is singular. It contains all types of masters, beginning with the MicroMaster, a mobile unit and ending with the great central for read-out of an unlimited number of meters.

Our service:

M-Bus technologyWe advise you on how to centrally record energy consumption data (electricity, gas, water, heat) at low cost.
M-Bus devicesAs Europe's leading manufacturer of M-Bus level converters and control panels, we supply you with proven and innovative devices.
M-Bus softwareFor reading, evaluation and archiving of your consumption data we have the optimal software solution for you!
M-Bus installationWe help you with the planning and commissioning of your M-Bus network (also on site).

M-Bus technology saves time and money:

We would be pleased if we could help you to achieve greater efficiency as well.
Contact us, we look forward to a constructive discussion with you.

M-Bus Master

M-Bus Master

The M-Bus master is the heart of an M-Bus installation. It provides the slaves with voltage and current and is responsible for communication. At Relay, see the appropriate master or level converter for your application. Whether you want to read 3 or 250 meters.

to product overview "M-Bus master"
M-Bus Slaves

M-Bus Slaves

Relay offers a wide range of slaves for different applications. The PadPulse devices adapt meters with pulse output to the M-Bus. Our AnDi modules easily evaluate analog signals by M-bus. You want to read status indicators with the M-Bus? No problem with the PadIn4.

to product overview „M-Bus Slaves”


Here you will find everything related to your M-Bus installation. From the 11-bit analog modem to the TCP / IP converter towards the M-bus splitter. With our great range of accessories, you are ready for many special tasks.

to product overview "Accessories"
M-Bus Software

M-Bus Software

Relay also provides you with software related to the M-Bus. You want to configure slaves, read M-Bus installations or manage relay centrals? For all these tasks Relay offers the right program.

to product overview "software"


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    Relay GmbH
    Stettiner Str. 38
    33106 Paderborn

    Tel: +49(0)5251-17670