Winner
Updated November 2026
Data from the official Airthings site.
2026 verdict
Readable at a glance versus broader sensing: the Airthings 325 Corentium Home 2 is the better radon monitor of these two Airthings models, with a screen and twice the battery life.
It shows radon on an LCD display and is rated for 3 years on two AA batteries, where the Airthings Wave Plus has no screen and is rated for 1.5 years on the same cells. The Airthings Wave Plus measures more, adding CO2, TVOC and air pressure to the radon, temperature and humidity both track. Both are Bluetooth only, both carry a 5-year warranty and both work with Google Home, Alexa and Home Assistant. Choose the Airthings 325 Corentium Home 2 for straightforward radon monitoring, and the Airthings Wave Plus if you want ventilation and VOC data in the same device.
Works with
Connectivity
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Works with
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| Feature | Airthings 325 Corentium Home 2 | Airthings Wave Plus | Winner |
|---|---|---|---|
| Price | $179.97 | $249.99 | Airthings 325 Corentium Home 2 |
| Rating | 4.4 | 4.2 | Airthings 325 Corentium Home 2 |
| Battery Life | 3 years | 1.5 years | Airthings 325 Corentium Home 2 |
| Screen | YES | NO | Airthings 325 Corentium Home 2 |
| Sensors | Radon, Temperature, Humidity | TVOC, CO2, Radon, Temperature, Humidity, Atmospheric Pressure | Airthings Wave Plus |
| 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 |
| 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
Screen
The Airthings 325 Corentium Home 2 shows the radon level on its LCD screen. The Airthings Wave Plus has no screen, only a light you wave at for good, fair or poor, so the numbers mean opening the app.
Sensors
Both measure radon, temperature and humidity. The Airthings Wave Plus adds CO2, TVOC and air pressure, the readings that tell you a room needs airing or that fumes are building up.
Battery life
On two AA batteries each, the Airthings 325 Corentium Home 2 is rated for 3 years and the Airthings Wave Plus for 1.5, so you change them half as often on the Corentium.
Size
At 113 x 61 x 29 mm the Airthings 325 Corentium Home 2 is a handheld unit you can move between rooms. The Airthings Wave Plus is a wider 121 x 121 mm unit with a magnetic mount, better suited to staying in one spot.
Which one to buy if
- you want to read radon without opening an app
The Airthings 325 Corentium Home 2 has a screen; the Airthings Wave Plus does not.
- you want CO2 and VOC readings as well
The Airthings Wave Plus measures both; the Airthings 325 Corentium Home 2 is radon, temperature and humidity only.
- you want to test several rooms in turn
The compact Airthings 325 Corentium Home 2 is built to be moved around.
- you want to change batteries as rarely as possible
The Airthings 325 Corentium Home 2 is rated for twice the battery life.
Winner
$179.97
- + Price: $179.97
- + Rating: 4.4
- + Battery Life: 3 years
- - Sensors: Radon, Temperature, Humidity vs TVOC, CO2, Radon, Temperature, Humidity, Atmospheric Pressure
$249.99
- + Sensors: TVOC, CO2, Radon, Temperature, Humidity, Atmospheric Pressure
- - Price: $249.99 vs $179.97
- - Rating: 4.2 vs 4.4
What owners say
Owners of both Airthings monitors use them to follow radon over weeks and to confirm a mitigation system, and both groups wish for Wi-Fi. Airthings 325 Corentium Home 2 owners describe effortless pairing, solid build quality, readings that line up with short- and long-term test kits and Good/Fair/Poor readouts that need no expertise, with a couple seeing it disagree with a second meter. Airthings Wave Plus owners single out CO2 and VOC readings that respond to cleaning or an open window and a wave-to-check light, and complain about slow, flaky syncing and radon readings that several found lower than charcoal lab kits.
Frequently Asked Questions
Which is better overall: Airthings 325 Corentium Home 2 or Airthings Wave Plus?
For radon, the Airthings 325 Corentium Home 2, which adds a screen and a 3-year battery rating against 1.5 years. The Airthings Wave Plus is better if you want CO2, VOC and pressure readings in the same device.
What is the biggest difference between the Airthings 325 Corentium Home 2 and the Airthings Wave Plus?
Screen against sensors. The Airthings 325 Corentium Home 2 has an LCD display and measures radon, temperature and humidity. The Airthings Wave Plus has no display but adds CO2, TVOC and air pressure.
Do the Airthings 325 Corentium Home 2 and the Airthings Wave Plus have Wi-Fi?
No. Both are Bluetooth only and sync when your phone is nearby. The Airthings Wave Plus can reach the cloud through an Airthings hub.
Who should buy the Airthings 325 Corentium Home 2?
Anyone who wants a simple, portable radon monitor with the reading on the device and long battery life.
Who should buy the Airthings Wave Plus?
Homeowners who want radon, CO2 and VOC trends from one battery unit and do not mind reading them in the app.
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