Winner
Updated November 2026
Data from the official Airthings and Aranet sites.
2026 verdict
Radon plus the rest of the air: the Airthings Wave Plus is the more complete monitor of this pair, and the one to buy if you want more than a radon number.
On top of radon, temperature, humidity and pressure it reads CO2 and VOCs, works with Alexa, Google Home and Home Assistant, can join an Airthings Hub through SmartLink for data around the clock and carries a 5-year warranty against 2. The Aranet Radon Plus is the focused radon meter: an E-Ink screen you read at a glance, two AA batteries rated for 7 years against 1.5, and it is the lower priced of the two. Both are battery powered, both talk Bluetooth to a phone app and neither measures particles. Choose the Airthings Wave Plus to track ventilation and radon together in an Alexa or Google home, and the Aranet Radon Plus for a low-maintenance radon monitor with a screen.
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The biggest differences
Where these two are furthest apart, and by how much.
- Battery Life4.7×Aranet Radon Plus7 years vs 1.5 years
- Warranty2.5×Airthings Wave Plus5 years vs 2 years
| Feature | Airthings Wave Plus | Aranet Radon Plus | Winner |
|---|---|---|---|
| Price | $249.99 | $209.00 | Aranet Radon Plus |
| Rating | 4.2 | 4.8 | Aranet Radon Plus |
| Warranty | 5 years | 2 years | Airthings Wave Plus |
| Battery Life | 1.5 years | 7 years | Aranet Radon Plus |
| Connectivity | Bluetooth, Other | Bluetooth | Airthings Wave Plus |
| Screen | NO | YES | Aranet Radon Plus |
| Integrations | Google Home, Alexa, Home Assistant | Home Assistant | Airthings Wave Plus |
| Sensors | TVOC, CO2, Radon, Temperature, Humidity, Atmospheric Pressure | Radon, Temperature, Humidity, Atmospheric Pressure | Airthings Wave Plus |
| Weather Resistance | NO | IP20 | Different strengths |
| Alerts | Temperature Alerts, Humidity Alerts, Air Quality Alerts, Low Battery Alerts | Temperature Alerts, Humidity Alerts, Air Quality Alerts, Low Battery Alerts | Tie |
| Local Control | YES | YES | Tie |
What the differences mean
What it measures
Both read radon, temperature, humidity and pressure. Only the Airthings Wave Plus adds CO2 and VOCs, which is what tells you a bedroom needs airing or that cooking fumes are lingering. The Aranet Radon Plus is a radon meter first.
Screen
The Aranet Radon Plus has an E-Ink screen with the reading on the device. The Airthings Wave Plus has none: you wave at it for a Good, Fair or Poor light and open the app for numbers.
Battery life
Both run on two AA batteries, rated for 7 years on the Aranet Radon Plus and 1.5 years on the Airthings Wave Plus, which spends more power on its extra sensors.
Platforms and remote access
The Airthings Wave Plus works with Alexa, Google Home and Home Assistant and can link to an Airthings Hub for data online around the clock. The Aranet Radon Plus works with Home Assistant only, which is also its route to remote access.
Warranty
Airthings covers the Airthings Wave Plus for 5 years, Aranet the Aranet Radon Plus for 2.
Which one to buy if
- you want to track ventilation as well as radon
The Airthings Wave Plus adds CO2 and VOC sensors the Aranet does not have.
- you want to read the level without opening an app
The Aranet Radon Plus shows it on its E-Ink screen; the Wave Plus only has a status light.
- your home runs on Alexa or Google Home
The Airthings Wave Plus works with both, and the Aranet Radon Plus with neither.
- you want to change batteries as rarely as possible
Its batteries are rated for 7 years, against 1.5 on the Wave Plus.
Winner
$249.99
- + Warranty: 5 years
- + Connectivity: Bluetooth, Other
- + Integrations: Google Home, Alexa, Home Assistant
- - Price: $249.99 vs $209.00
- - Rating: 4.2 vs 4.8
$209.00
- + Price: $209.00
- + Rating: 4.8
- + Battery Life: 7 years
- - Warranty: 2 years vs 5 years
- - Connectivity: Bluetooth vs Bluetooth, Other
What owners say
Owners of both monitors use them the same way, to watch radon move with the weather and to confirm a mitigation system is working, and both groups name Bluetooth as the limit. Airthings Wave Plus owners single out CO2 and VOC readings that react when they cook, sweep or open a window, history from day one and the wave-to-check light, and their complaints are slow, flaky syncing, the Airthings Hub needed for remote data and radon readings that several found low against charcoal lab kits. Aranet Radon Plus owners talk about readings every 10 minutes that match mail-in lab tests and an E-Ink screen that sips power, and they complain about short range in a basement and no cloud sync.
Frequently Asked Questions
Which is better overall: Airthings Wave Plus or Aranet Radon Plus?
The Airthings Wave Plus, if you want a full picture: it adds CO2 and VOCs, works with Alexa, Google Home and Home Assistant and has a 5-year warranty. The Aranet Radon Plus is better as a dedicated radon meter, with a screen, far longer battery life and a lower price.
Aranet vs Airthings: what is the biggest difference between the Aranet Radon Plus and the Airthings Wave Plus?
Scope. The Airthings Wave Plus is a six-sensor air quality monitor that includes radon, while the Aranet Radon Plus is a radon monitor that also reads temperature, humidity and pressure and shows it all on an E-Ink screen.
How accurate is the Airthings Wave Plus for radon compared with the Aranet Radon Plus?
Owners are split on the Airthings Wave Plus: many trust it as a trend monitor, while several found it reading low against charcoal lab kits. Aranet Radon Plus owners report readings every 10 minutes that match mail-in lab tests. Whichever you buy, a lab test is a good cross-check before paying for mitigation.
Do the Airthings Wave Plus and the Aranet Radon Plus work with Home Assistant?
Yes, both do. The Airthings Wave Plus also works with Alexa and Google Home, while the Aranet Radon Plus has no voice assistant support.
Who should buy the Airthings Wave Plus?
Homes that want radon and ventilation data in one device, with CO2 and VOC readings, voice assistant support and a 5-year warranty.
Who should buy the Aranet Radon Plus?
Anyone focused on radon who wants a reading on an E-Ink screen, batteries rated for 7 years and Home Assistant support, at the lower price of the two.
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