> 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-loggers.md).

# Bluetooth Low Energy loggers

[Efento Bluetooth Low Energy (BLE) loggers](https://getefento.com/product-categories/bluetooth-low-energy-sensors/) are wireless devices designed to measure and transmit data such as temperature, humidity, or other environmental parameters. These loggers communicate via Bluetooth and require an Efento Gateway to send the collected data to the Efento Cloud platform. Depending on the network configuration, users can choose between two types of gateways: [**Bluetooth–Ethernet**](https://getefento.com/product/efento-gateway-bluetooth-ethernet/) and [**Bluetooth–LTE**](https://getefento.com/product/efento-gateway-bluetooth-lte/). The Ethernet gateway connects directly to a local network via cable, while the LTE gateway uses a mobile network connection to transmit data.

Please identify which type of gateway you are using and follow the corresponding configuration instructions in the next sections.

{% content-ref url="/pages/QPzbTvC6XsT5gERiU43E" %}
[LTE Gateway configuration](/efento-cloud/adding-devices/bluetooth-low-energy-loggers/publish-your-docs.md)
{% endcontent-ref %}

{% content-ref url="/pages/wRs1HxUaZDjbjGqjJLyA" %}
[Ethernet Gateway configuration](/efento-cloud/adding-devices/bluetooth-low-energy-loggers/publish-your-docs-1.md)
{% endcontent-ref %}


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