Meter Connectivity Modules

Elvaco offers meter connectivity modules for heat and electricity meters. These are used with a specific type of meter to collect data and deliver strucutred meter data reports to a receiving system, or to enable a meter to communicate by M-Bus/Wireless M-Bus.

CMi4110 - Integrated MCM for L+G UH50/UC50, LoRaWAN

The rapid growth of IoT (“Internet of things”) has resulted in new communication techniques, specifically developed to meet the growing demand of high energy-efficiency and long range. LoRaWAN is one such technique. CMi4110 is mounted inside a L+G UH50/UC50 to deliver meter data to a receving server via a LoRaWAN network. The product is energy-efficient (battery-life of at least 11 years), has a long communication range (up to 25 km) and is easily retrofitted inside an already-deployed meter. With CMi4110, Elvaco offers an MCM designed for customers that require a cost-effective solution with lesser demand for bandwidth.


Protection class:
Dimensions (w x h x d):
80 x 32 x 23 mm
In Landis+Gyr UH50 / UC50 module slot 2
35 g

Electrical connections

Supply voltage:
Internal meter battery (D cell) or PSU (Elvaco CMip2110 230V, L+G WZU-AC230-xx or WZU-ACDC24-00)

Electrical characteristics

Nominal voltage:
3.0 - 5.0 VDC
Power consumption (max):
40 mA

Environmental specifications

Operating temperature:
+5 °C to +55 °C
Operating humidity:
0 to 93 %, no condensation
Operating altitude:
0-2000 m
Pollution degree:
Degree 1
Usage environment:
Storage temperature:
-20 °C to +60 °C

Temperature sensor, margin of error

Humidity sensor, margin of error

User interface

Green LED:
Red LED:
Push button:
Start-up / reboot / switch off device
NFC via Elvaco OTC app or downlink data


Wireless M-Bus

Integrated M-Bus Master

Wireless M-Bus Receiver

M-Bus slave interface


Data storage (examples)

Mobile Network

Fixed Network (Ethernet)



EN 301489-1, EN 301489-3

Connections and Interfaces


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