One thing that makes some air gaging products difficult to use is their aging technology. There’s not always a compatible port to hook up to your display system in order to properly read your measurement data. Fortunately, Metro has been in the business since the '90s and has a product that can help with this problem. This product is known as the Metro M-Bus module.

With the right M-Bus module, you can connect any cable to your air gage display and use it effectively. If you have multiple types of cables, you can use multiple modules to create an M-Bus network. This also allows you to connect multiple air gaging systems at once. It’s even compatible with the Solartron Orbit bus. No matter what kind of interconnectivity you need for your air gages, the Metro M-Bus module will greatly assist you.

M-Bus Module Brochure

Download brochure by clicking title or image


The module's enclosures and electronic have been redesigned in 2012 to offer the best performance to users.

The M-Bus modules are today made out of anodised extruded aluminium profile that can be clipped on a standard DIN rail. It is very adapted to be used on a severe industrial environment.


Below is a list of available modules.


MB-RS : Master module to connect the M-Bus multiplexers to a computer or a PLC using RS232 or USB


MB-RS : Master module to connect the M-Bus multiplexers to a computer or a PLC using RS232 or USB


MB-4i/8i : connection of inductive gauging probes

Module to connect 4 or 8 inductive probes. Several models are available allowing the user to connect different brands of inductive gauging probes to the Metro display units:

- Metro (M802, M804S etc)
- Tesa type (GT21 , GT31 etc)
- Mahr / Feinprüf (P2004M, 1300 etc)
- Marposs (F10, F25 etc)
- Peter Hirt (T101F etc)
- Solartron Metrology (AX/1/S etc)


MB-AG : module for 1 Air Gage

  • Module to connect 1 air gage.  Possibility to calibrate in 2 or 3 points.
  • Filter function to increase the stability
  • High resolution.
  • Compatible with any brand of air gage

MB-2S : connection of 2 incremental probes from Heidenhain

11µA or 1Vpp output signal.


MB-BT : connection of Sylvac wireless measuring instruments

Module to connect 8 Sylvac or Bowers measuring instruments, wireless up to 15 m of distance.

Compatible only with the M400 display unit.



MB-4C : connection of 4 Capacitive probes from Sylvac


MB-4M : connection of 4 Magnescale (ex Sony) probes


MB-2T : connection of 2 TTL probes or encoders


MB-IO : module with 8 optocoupled I/O

Allows to connect PLC peripherals to your M-Bus system.



MB-4D & 8D: connection of 4 or 8 measuring instruments

This module allows to plug measuring instruments (comparator, caliper, micrometer, weight scale etc...) from any brand (Mitutoyo, Mahr, Sylvac, Tesa...) to a display unit from Metro.


MB-TP : module for temperature sensors

Module to connect 1 temperature sensor.

It can be used on the M3 and M400 displays for either an alarm when the temperature changes from a defined value since the last preset, or for temperature compensation.


MB-1A : module with 1 analogue input

Module to connect 1 device with a analogue output 4-20mA or 0/+10V

MB-PS_222-170 (1)

MB-PS : Power supply module for M-Bus network

This module give additional power supply when the number of modules used together is excessive.

Call us today: (815) 242-0027

We will come up with a solution that fits your needs.