Product overview


CMi4170 offers a combination of battery operation with long lifetime and a versatile application through its many configuration options. Key features of the module include:

  • Extensive battery lifetime

    The module’s EcoMode feature enables the module to achieve a battery-lifetime of 6+1 or 10+1 years with a new internal meter battery (“+1” refer to 1 year of storage).

  • Easy start-up

    As soon as the meter connectivity module is mounted in the meter and activated, it will join the LoRaWAN network.

  • Easy and secure commissioning

    With Elvaco’s One-Touch Commissioning (OTC), deployment, configuration and key transferring can be performed in a secure and flexible way.

  • Unique and flexible message formats

    CMi4170 has several different message formats, this makes it easy to customize the payload to the unique demands of each application.


CMi4170 is compatible with Engelmann Sensostar meters with a compatible firmware version. Once the module is mounted and starts up, a compatibility check is made to ensure that it is compatible with the meter firmware. If the module is mounted in an incompatible meter, this is indicated in the OTC App.

The meter’s firmware version can be shown in the meter’s display, for further information, refer to the meter’s manual.

The following table shows the minimum firmware versions required.

Table 203. CMi4170 - Meter firmware compatibility


Minimum firmware version

Engelmann SensoStar S3


Engelmann SensoStar S3C


Parts overview

  1. Green LED

  2. Red LED

  3. Interface connector

  4. Push button

  5. Pulse input

  6. LoRaWAN antenna


The NFC antenna is integrated in the edge of the PCB.

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