elvaco CMeX11S

For building managers, metering specialists and system integrators, the Elvaco CMeX11S solves the challenge of expanding M-Bus networks without major rewiring or additional gateways. Many meter-reading systems hit limits when trying to connect dozens of water, heat or electricity meters in a single installation. The CMeX11S addresses this by acting as a dedicated M-Bus master/extender capable of adding up to 64 additional meters. Its IR pass-through feature allows you to stack up to four units side-by-side—making installation in tight control cabinets easier and more streamlined. The RS-232 interface supports legacy systems or custom data-collection configurations, giving you flexibility not found in many generic extenders. Built to fit on DIN-rails and powered by 100-240 VAC, it integrates seamlessly into commercial environments in hotels, apartment blocks, industrial parks or smart-building metering. Compared with alternative modules that stop at 32 meters or lack stacking capability, the CMeX11S offers greater drive strength, longer bus lengths (up to 5 000 m in certain setups) and a modular architecture that grows with your network. For projects in Bangladesh seeking reliable, expandable metering infrastructure, this module offers a future-proof and efficient solution.