> For the complete documentation index, see [llms.txt](https://docs.gxc.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.gxc.io/hw/lte/4g-mesh-nodes/gm01/gm01-mesh-node-installation-guide/device-information.md).

# Device Information

The serial number of the Mesh Node and the IMSI of the SIM Card(s) inserted in the Mesh Node’s SIM Card slot(s) are shown on the System page. The IMSI is required to add the GM01 to the Onyx Portal.

{% stepper %}
{% step %}
Click the **System** link at the top right side of any of the Mesh Node’s LCI webpages.
{% endstep %}

{% step %}
On the **System** page, locate the serial number and IMSI under the **Device Information** section of the page.

{% hint style="info" %}
**NOTE:** Take note of the IMSI of the SIM Card(s) and the Serial Number of the unit. This information will be needed when you add the GM01 to the Onyx Portal.
{% endhint %}
{% endstep %}
{% endstepper %}


---

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