# Bluetooth Scanning Settings

To access **Bluetooth Scanning Settings**, you must first enable access to configure advanced settings on the **Cloud Options** page under **Advanced Settings**:

<figure><img src="/files/A1x5Jm6qDKt5rqgAM033" alt=""><figcaption></figcaption></figure>

By default, Ruuvi Gateway scans only for Ruuvi sensors (filtered by BLE SIG member ID 0x0499)

<figure><img src="/files/AGaHEtoTeg2RZ3PgqwRL" alt=""><figcaption></figcaption></figure>

Also, you can enable Bluetooth long range (also known as Coded PHY). It is a new mode introduced in Bluetooth Version 5.0 to extend the range of Bluetooth devices from 30-100 feet to ranges of 1 kilometer and beyond.

**Note**: Most existing devices only transmit on 1 Mbps PHY. 1 Mbps and Coded PHYs modulations are scanned sequentially, so scanning both PHYs will result in at least 50% packet loss on one of the PHYs.

<figure><img src="/files/WbPMtm63967EqqA8kBWm" alt=""><figcaption></figcaption></figure>

If you want to relay data from more than just Ruuvi sensors, you need to select the "**All (including third party beacons)**" option and adjust the scanned PHYs and Bluetooth channels used:

<figure><img src="/files/PhSZUo0XxB2MxsJVTEnp" alt=""><figcaption></figcaption></figure>

**Listen to channels**. Each enabled BLE channel is scanned sequentially for a minimum of 7000 ms per channel, for a total of 21000 ms if all 3 channels are enabled. At least one channel must be active.

It is possible to filter out the relayed Bluetooth sensors. You can use **whitelist mode** if you only want to share data for specific sensors, or **blacklist mode** if you want to share data from all sensors except the specified list.

<figure><img src="/files/hBiy0AhFrHKLf7DSuSwg" alt=""><figcaption></figcaption></figure>

If you don't see some sensors, try to press on the **Refresh list**. If a sensor is offline, you can add it manually by entering its MAC address and pressing the **Add** button.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.ruuvi.com/ruuvi-gateway-firmware/gateway-html-pages/bluetooth-scanning-settings.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.