Updated November 2026
Data from the official Airthings and Aranet sites.
2026 verdict
Airthings or Aranet for radon? The Aranet Radon Plus takes this one on battery life and on the extra air pressure sensor.
Its two AA batteries are rated for 7 years against 3 for the Airthings 2989 View Radon, it refreshes radon every 10 minutes, and it measures pressure along with radon, temperature and humidity. The Airthings 2989 View Radon is the connected one: Wi-Fi for alerts and weekly reports away from home, USB-C power, Google Home and Alexa as well as Home Assistant, and a 5-year warranty against 2. Both show readings on an E-Ink screen. Pick the Aranet Radon Plus if you check radon at home or through Home Assistant, and the Airthings 2989 View Radon if you want remote alerts without any setup of your own.
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The biggest differences
Where these two are furthest apart, and by how much.
- Warranty2.5×Airthings 2989 View Radon5 years vs 2 years
- Battery Life2.3×Aranet Radon Plus7 years vs 3 years
| Feature | Airthings 2989 View Radon | Aranet Radon Plus | Winner |
|---|---|---|---|
| Price | $219.99 | $209.00 | Aranet Radon Plus |
| Rating | 4.2 | 4.8 | Aranet Radon Plus |
| Warranty | 5 years | 2 years | Airthings 2989 View Radon |
| Battery Life | 3 years | 7 years | Aranet Radon Plus |
| Connectivity | 2.4 GHz WiFi, Bluetooth, Other | Bluetooth | Airthings 2989 View Radon |
| Integrations | Google Home, Alexa, Home Assistant | Home Assistant | Airthings 2989 View Radon |
| Sensors | Radon, Temperature, Humidity | Radon, Temperature, Humidity, Atmospheric Pressure | Aranet Radon Plus |
| Local Control | NO | YES | Aranet Radon Plus |
| Weather Resistance | NO | IP20 | Different strengths |
| Screen | YES | YES | Tie |
| Alerts | Temperature Alerts, Humidity Alerts, Air Quality Alerts, Low Battery Alerts | Temperature Alerts, Humidity Alerts, Air Quality Alerts, Low Battery Alerts | Tie |
What the differences mean
Remote access
The Airthings 2989 View Radon is on Wi-Fi, so alerts reach you anywhere out of the box. The Aranet Radon Plus is Bluetooth only: remote access means Home Assistant with Bluetooth proxies, otherwise you read it with a phone nearby.
Battery life and power
The Aranet Radon Plus is rated for 7 years on two AA batteries. The Airthings 2989 View Radon gets 3 years from six AA cells, but it can also run from USB-C and skip batteries entirely.
Smart home
The Airthings 2989 View Radon works with Google Home, Alexa and Home Assistant. The Aranet Radon Plus works with Home Assistant only, so voice assistant households lose the ability to ask for the radon level.
Warranty
Airthings covers the Airthings 2989 View Radon for 5 years, Aranet the Aranet Radon Plus for 2.
Which one to buy if
- you want alerts on your phone wherever you are
The Airthings 2989 View Radon reaches the internet over Wi-Fi on its own.
- you run Home Assistant
The Aranet Radon Plus feeds Home Assistant dashboards and alerts and lasts years on its batteries.
- you want to see radon react quickly after opening windows
Owners single out the 10-minute readings of the Aranet Radon Plus.
- you ask Alexa or Google for everything
Only the Airthings 2989 View Radon works with both voice assistants.
$219.99
- + Warranty: 5 years
- + Connectivity: 2.4 GHz WiFi, Bluetooth, Other
- + Integrations: Google Home, Alexa, Home Assistant
- - Price: $219.99 vs $209.00
- - Rating: 4.2 vs 4.8
Winner
$209.00
- + Price: $209.00
- + Rating: 4.8
- + Battery Life: 7 years
- - Warranty: 2 years vs 5 years
- - Connectivity: Bluetooth vs 2.4 GHz WiFi, Bluetooth, Other
What owners say
Owners of both radon monitors trust the numbers: Aranet Radon Plus owners say readings match mail-in lab tests, and Airthings 2989 View Radon owners ran units side by side and found them accurate enough to act on. Both groups use them to confirm a mitigation system is working. From there the stories split. Airthings 2989 View Radon owners value checking levels and getting alerts from anywhere and weekly email reports, and complain about the occasional defective unit and inconsistent support. Aranet Radon Plus owners praise the quick 10-minute updates, the multi-year battery and Home Assistant alerts, and warn about short Bluetooth range from a basement and data that stays on the phone with no cloud sync.
Frequently Asked Questions
Airthings vs Aranet: which radon monitor is better, the Airthings 2989 View Radon or the Aranet Radon Plus?
The Aranet Radon Plus, for its 7-year battery rating, 10-minute readings and extra pressure sensor. The Airthings 2989 View Radon is the better choice if you need Wi-Fi, Alexa or Google Home, or a 5-year warranty.
What is the biggest difference between the Airthings 2989 View Radon and the Aranet Radon Plus?
Wi-Fi. The Airthings 2989 View Radon connects over Wi-Fi and Bluetooth and sends alerts anywhere, while the Aranet Radon Plus is Bluetooth only and relies on a nearby phone or Home Assistant.
Are the Airthings 2989 View Radon and the Aranet Radon Plus accurate?
Owners of both report trustworthy readings: the Aranet Radon Plus matching mail-in lab tests, the Airthings 2989 View Radon consistent across several units. Both need time to settle into a good average, so read them as trends.
Who should buy the Airthings 2989 View Radon?
Homeowners who want radon alerts and weekly reports from anywhere, voice assistant support and a long warranty, with the option of plugging it in over USB-C.
Who should buy the Aranet Radon Plus?
Home Assistant users and anyone who wants fast, accurate radon readings on a battery that lasts years, and who does not need Wi-Fi or voice assistants.
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