> For the complete documentation index, see [llms.txt](https://docs.efento.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.efento.io/efento-cloud/adding-devices/bluetooth-low-energy-sensors/publish-your-docs.md).

# LTE Gateway configuration

Efento Gateways are mobile network-connected devices that receive data from nearby Efento Bluetooth Low Energy sensors and transmit it over LTE to the Efento Cloud platform.

## SIM card requirements

Efento Bluetooth–LTE Gateways use mobile network connectivity to transmit data to the Efento Cloud. To enable this connection, a SIM card provided by a mobile operator is required. Please ensure the SIM card meets the following requirements:

* **Card size:** Nano SIM
* **Data plan:** Minimum of **200 MB per month** to ensure stable data transmission
* **Contract type:** Recommended **automatic renewal or auto top-up** plan to prevent service interruptions due to insufficient balance or expired contracts
* **Activation:** The SIM card must be **active and unlocked (no PIN code required)** before installation

## Gateway set up and configuration

Configuration of Efento LTE Gateways is done with a free mobile application for Android and iOS devices. Please follow the steps below to connect Efento Bluetooth - LTE Gateway to your Efento Cloud organisation

{% stepper %}
{% step %}

### Connect the antennas

Connect **both antennas** to their respective connectors as indicated.

The connectors are designed to prevent incorrect installation and each antenna fits only into the appropriate connector.

<figure><img src="/files/xifxkWhyP9JUPBWFYHVo" alt=""><figcaption><p>Efento Bluetooth - LTE gateway back panel</p></figcaption></figure>
{% endstep %}

{% step %}

### Insert the SIM card

Insert a nanoSIM card to the SIM card slot on the gateway's back panel. The SIM card slot is marked with **SIM**
{% endstep %}

{% step %}

### Place the gateway in its location

Place the gateway in its installation location.

{% hint style="info" %}
**Ensuring Good Signal Conditions**

To ensure optimal Bluetooth communication performance, consider the following recommendations when selecting the installation site for the gateway:

* Place the gateway in an open area, at least 1 meter above the ground.
* Avoid installing the gateway close to corners, or large metal surfaces that may block or reflect Bluetooth signals.
* Keep the gateway away from sources of electromagnetic interference such as Wi-Fi routers or industrial equipment.
* Avoid placing the gateway inside cabinets, enclosures, or behind objects that may reduce signal strength.
* If multiple gateways are used, maintain sufficient spacing between them to minimize mutual interference.
* After installation, verify Bluetooth signal quality and communication stability with all connected devices to confirm proper operation.
  {% endhint %}
  {% endstep %}

{% step %}

### Power up the gateway

Connect the gateway to the power source (5V, 1A) and once connected, press the **PWR** button located on the back panel to switch the device on.

{% hint style="warning" %}
**Power Supply Requirements**

Use only approved power sources to power the Efento Gateways. Ensure it provides a **stable 5V output with a minimum current of 1A**.

Using an **improper charger** (e.g., one with an output below 1A) may result in:

* Insufficient power delivery, leading to unstable operation or unexpected shutdowns,
* Permanent damage to the gateway’s internal components,
* Loss of communication with connected loggers.

Failure to follow these guidelines may void the device warranty and cause equipment malfunction.
{% endhint %}
{% endstep %}

{% step %}

### Run the mobile application

Download Efento mobile application for [Android](https://play.google.com/store/apps/details?id=pl.efento.cloud\&hl=en) or for [iOS](https://apps.apple.com/pl/app/efento/id6479740909), open it and login to your Efento Cloud account. If you don't have an account yet, please [create one](/efento-cloud/getting-started/quickstart.md) before proceeding.
{% endstep %}

{% step %}

### Follow the instructions on the screen

The sensor provisioning process in the mobile application has been designed for maximum simplicity and ease of use.\
Follow the on-screen instructions carefully to complete the gateway configuration.
{% endstep %}
{% endstepper %}


---

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