Aranet Home

SAF Tehnika A/S

About this app

Bring every Aranet sensor into one simple app. Aranet Home gives you a clear, real-time view of the air quality, so you always know what's happening in the air around you.
Supported devices:

- Aranet4 – Your indoor air quality go-to, measuring CO₂, temperature, humidity, and atmospheric pressure.
- Aranet2 – A reliable temperature and humidity sensor with long-term data storage and easy app pairing.
- Aranet Radiation – Tracks ionizing radiation levels and cumulative exposure for peace of mind.
- Aranet Radon Plus – A fast, portable, battery-powered radon monitor that also reads temperature and relative humidity.
- Aranet Radon One – A simple, dedicated radon monitor focused on one thing and doing it well.

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- Real-time monitoring from every connected sensor, with up to 90 days of measurement history stored for you.
- Home screen widgets for an instant glance, any time.
- Clear, color-coded charts to make your data easy to read at a glance.
- Export your data whenever you need it.
- Get notified the moment a sensor's readings enter the red zone.
- Receive low-battery warnings

Available in: English, German, French, Latvian, Danish, Finnish, Swedish, and Norwegian.

Whether you're tracking CO₂ levels in your bedroom, checking radon in your basement, or keeping an eye on humidity throughout your home, Aranet Home app puts all the answers in one place.

Learn more about the full Aranet sensor lineup at aranet.com.

Ratings and reviews

I was looking for a simple way to measure and track radon levels in my house. I spent hours researching them and settled on Aranet. I have no complaints; it does exactly what I need it to do. It's easy to read, easy to use, and has all the options I want. It reads the device via Bluetooth and tracks historical data recorded every 10 minutes. I connected it to my HomeAssistant, so I can read it from anywhere and set alerts to take action when radon is high.

This app has been working reliably to display data from the CO2 monitor. My only complaint is that the chart displays data only from the range you tap on. If you want to view the overnight data, you have to tap "7 days," and zoom in rather than "Today" or "Yesterday" because otherwise the data on the chart starts at midnight or end at it. It would be nice if it simply displayed the data for the range in the view, then use the buttons as a convenience to snap to a particular range of the data.

App charts CO2 and other levels reasonably enough, but there's no way to get a smartphone notification when levels exceed the risk threshold—the only option is a short "peep" from the device or a series of impractical "peeps" until levels recede. The lack of notifications means if you miss the audible alert you may not realise for hours levels are too high, and no way to send an alert to wearables either. Developer said a notification was on the to-do list years ago. How many years do they need?

What’s new

New:
- Full app redesign
- Dark and Light mode
- A refreshed dashboard, full-screen view, and charts
- Live sensor readings shown right in the pairing list
- Quick Start guides for every sensor
- Estimated battery life now shown in sensor settings

Improvements:
- Fixed background data sync issue
- Improved chart performance