> For the complete documentation index, see [llms.txt](https://help.aranet.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.aranet.com/aranet-rn-one/aranet-radon-one/faq.md).

# FAQ

<details>

<summary>Do I need to register to use the device?</summary>

No registration is necessary. You can use Aranet Radon Plus sensor as a standalone device or sync it with the free Aranet Home app for a comprehensive data history and analysis.

</details>

<details>

<summary>What is the purpose of the color-coded indication bars on the sensor?</summary>

The color-coded bars (green, yellow, red) indicate the radon concentration levels and warn you of unhealthy levels. The thresholds for these bars can be adjusted via the Aranet Home app. The default thresholds are set following the World Health Organization (WHO) Radon guidelines.

</details>

<details>

<summary>How fast do I get the first radon reading?</summary>

You’ll see the first result about 10 minutes after setup.

</details>

<details>

<summary>When is the reading fully accurate?</summary>

Accuracy stabilizes within 1 hour of operation. Long-term averages (24h, 7d, 30d) refine precision further.

</details>

<details>

<summary>Where should I place the monitor at home?</summary>

Place it on a flat surface in the lowest lived-in level, such as a basement or ground-floor room. Keep it away from direct sunlight and high humidity (over 85%).

</details>

<details>

<summary>Does it work without cables or Wi-Fi?</summary>

Yes. It’s battery-powered and cable-free. Bluetooth is optional and used only if you connect it to the Aranet Home app.

</details>

<details>

<summary>How to export measurement data from Aranet Home App?</summary>

Simply go into your Aranet Home App, and tap onto the dashboard view in the top right corner. Once there, tap on the “Sharing” icon in the top right corner and choose how you would like to share or download it.

</details>

<details>

<summary>How can I extend the warranty on my Aranet Home products?</summary>

You can extend the warranty of your Aranet Home products by an additional 12 months by registering the product and agreeing to receive email updates from SAF Tehnika. You can withdraw your consent to receive emails anytime without affecting the extended warranty.

[Register your product](https://aranet.com/en/home/register-product)<br>

</details>

<details>

<summary>How can I return my Aranet sensor?</summary>

If you’re facing issues with your product, please fill in the returns form.

[Return form](https://rma.aranet.com/)

</details>


---

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