Updated November 2026
Data from the official Airthings site.
2026 verdict
Screen against no screen: the Airthings 325 Corentium Home 2 is the better radon monitor of these two, because it shows its readings on the device and is rated for twice the battery life.
Its LCD puts the radon level in front of you without opening an app, and its 2x AA batteries are rated for 3 years against 1.5 years on the Airthings 2950 Wave Radon, in a smaller body. The Airthings 2950 Wave Radon is the lower priced of the two and answers with a wave-to-check colour ring instead of a display, plus documented temperature, humidity and low battery alerts. Otherwise they match closely: radon, temperature and humidity sensors, Bluetooth plus SmartLink to an Airthings hub, Google Home, Alexa and Home Assistant support and a 5 year warranty. Pick the Airthings 325 Corentium Home 2 to read radon at a glance, and the Airthings 2950 Wave Radon to spend less on continuous monitoring.
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| Feature | Airthings 2950 Wave Radon | Airthings 325 Corentium Home 2 | Winner |
|---|---|---|---|
| Price | $105.65 | $179.97 | Airthings 2950 Wave Radon |
| Battery Life | 1.5 years | 3 years | Airthings 325 Corentium Home 2 |
| Screen | NO | YES | Airthings 325 Corentium Home 2 |
| Rating | 4.4 | 4.4 | Tie |
| Warranty | 5 years | 5 years | Tie |
| Weather Resistance | NO | NO | Tie |
| Connectivity | Bluetooth, Other | Bluetooth, Other | Tie |
| Integrations | Google Home, Alexa, Home Assistant | Google Home, Alexa, Home Assistant | Tie |
| Sensors | Radon, Temperature, Humidity | Radon, Temperature, Humidity | Tie |
| 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
Reading it on the device
The Airthings 325 Corentium Home 2 has an LCD, so anyone walking past the basement sees the radon level. The Airthings 2950 Wave Radon has no screen: a wave of the hand lights a green, yellow or red ring, and the actual number lives in the app, which only syncs over Bluetooth when you are nearby.
Battery life
Both run on 2x AA batteries, but the Airthings 325 Corentium Home 2 is rated for 3 years and the Airthings 2950 Wave Radon for 1.5 years. For a monitor tucked into a crawlspace, that is one battery change instead of two over the same stretch.
Size
The Airthings 325 Corentium Home 2 measures 113 x 61 x 29 mm, a small block that sits on a shelf. The Airthings 2950 Wave Radon is a 120 mm disc designed to mount on a wall or ceiling, which is where its wave gesture makes sense.
Alerts
Both send air quality alerts. The Airthings 2950 Wave Radon also documents temperature, humidity and low battery alerts; for the Airthings 325 Corentium Home 2 those three are not documented, which does not mean it lacks them.
Which one to buy if
- family members should see the radon level without an app
The Airthings 325 Corentium Home 2 shows its readings on its own LCD.
- the monitor goes somewhere hard to reach, like a crawlspace
A 3 year battery rating against 1.5 years means fewer trips to change the AA cells.
- you want continuous radon data for the least money
The Airthings 2950 Wave Radon is the lower priced of the two with the same radon, temperature and humidity sensing.
- you want to mount it on a wall or ceiling
The Airthings 2950 Wave Radon is built as a wall-mounted disc with a wave-to-check ring.
$105.65
- + Price: $105.65
- - Battery Life: 1.5 years vs 3 years
- - Screen: NO vs YES
Winner
$179.97
- + Battery Life: 3 years
- + Screen: YES
- - Price: $179.97 vs $105.65
What owners say
Owners of both Airthings monitors say the same thing about why they bought one: continuous radon data beats a one-time charcoal kit, and both groups report readings that line up with lab tests or test kits once the monitor has settled in. Both also mention that Bluetooth only means checking from the app when nearby. Airthings 2950 Wave Radon owners single out the wave-to-check ring and watching levels drop after a mitigation fan goes in, and they complain about slow, chat-only customer support and a minority of false spikes. Airthings 325 Corentium Home 2 owners talk about build quality, effortless pairing and the Good, Fair and Poor readouts, and their caveats are the premium price, treating it as a trend tool rather than an instant reader, and a couple of units disagreeing with a second meter.
Frequently Asked Questions
Which is better overall: Airthings 2950 Wave Radon or Airthings 325 Corentium Home 2?
The Airthings 325 Corentium Home 2. It adds an LCD for reading radon on the device and doubles the rated battery life to 3 years. The Airthings 2950 Wave Radon is the more affordable choice with the same core sensors and smart home support.
What is the biggest difference between the Airthings 2950 Wave Radon and the Airthings 325 Corentium Home 2?
The display. The Airthings 325 Corentium Home 2 shows readings on an LCD, while the Airthings 2950 Wave Radon has no screen and uses a colour ring you trigger with a wave, leaving the numbers to the app.
Do the Airthings 2950 Wave Radon and the Airthings 325 Corentium Home 2 have Wi-Fi?
No. Both connect over Bluetooth and can join an Airthings hub through SmartLink for data around the clock. Without a hub, the Airthings 2950 Wave Radon and the Airthings 325 Corentium Home 2 only sync when you open the app nearby.
Do the Airthings 2950 Wave Radon and the Airthings 325 Corentium Home 2 work with Alexa and Google Home?
Yes. Both work with Google Home, Alexa and Home Assistant. Neither supports Apple Home, SmartThings or Matter.
Who should buy the Airthings 325 Corentium Home 2?
Anyone who wants the radon level readable at a glance on the device, a longer 3 year battery rating and a compact monitor that sits on a shelf.
Who should buy the Airthings 2950 Wave Radon?
Buyers who want continuous radon, temperature and humidity monitoring at the lower price, mounted on a wall or ceiling, and are happy to read the numbers in the app.
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