Winner
Updated October 2026
Data from the official Airthings site.
2026 verdict
Pocket radon meter versus seven-sensor Wi-Fi station: for radon alone, the Airthings 325 Corentium Home 2 is the better value of these two Airthings monitors.
It measures radon, temperature and humidity on an LCD screen, runs up to 3 years on two AA batteries against 2 years on six for the Airthings View Plus, and costs noticeably less. The Airthings View Plus is the bigger device in every sense: Wi-Fi alongside Bluetooth for alerts anywhere, USB-C power, and PM2.5, CO2, TVOC and air pressure sensors on top of radon. Both carry a 5-year warranty and work with Google Home, Alexa and Home Assistant. Choose the Airthings 325 Corentium Home 2 to test radon room by room, and the Airthings View Plus to monitor a whole home's air remotely.
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| Feature | Airthings 325 Corentium Home 2 | Airthings View Plus | Winner |
|---|---|---|---|
| Price | $179.99 | $329.99 | Airthings 325 Corentium Home 2 |
| Rating | 4.4 | 4.0 | Airthings 325 Corentium Home 2 |
| Battery Life | 3 years | 2 years | Airthings 325 Corentium Home 2 |
| Connectivity | Bluetooth, Other | 2.4 GHz WiFi, Bluetooth, Other | Airthings View Plus |
| Sensors | Radon, Temperature, Humidity | TVOC, PM2.5, CO2, Radon, Temperature, Humidity, Atmospheric Pressure | Airthings View Plus |
| Warranty | 5 years | 5 years | Tie |
| Weather Resistance | NO | NO | Tie |
| Screen | YES | YES | 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 |
What the differences mean
Sensors
Both measure radon, temperature and humidity. The Airthings View Plus adds PM2.5, CO2, TVOC and air pressure, so it also tracks smoke, stuffiness and fumes. The Airthings 325 Corentium Home 2 is a radon monitor and nothing more.
Wi-Fi
The Airthings View Plus is on Wi-Fi and can push alerts anywhere. The Airthings 325 Corentium Home 2 is Bluetooth only, read in the app when you are close by.
Size and power
The Airthings 325 Corentium Home 2 is a compact 113 x 61 x 29 mm unit on two AA batteries rated for 3 years. The Airthings View Plus weighs 360 g and uses six AA batteries for about 2 years, or USB-C power.
Which one to buy if
- you only need to know your radon level
The Airthings 325 Corentium Home 2 covers radon with a screen and a longer battery life for less.
- you want alerts while away from home
Only the Airthings View Plus has Wi-Fi.
- you want to track CO2, VOCs and particulates too
The Airthings View Plus measures all three; the Airthings 325 Corentium Home 2 none of them.
- you plan to move the monitor around the house
The small, two-AA Airthings 325 Corentium Home 2 is the easier one to carry.
Winner
$179.99
- + Price: $179.99
- + Rating: 4.4
- + Battery Life: 3 years
- - Connectivity: Bluetooth, Other vs 2.4 GHz WiFi, Bluetooth, Other
- - Sensors: Radon, Temperature, Humidity vs TVOC, PM2.5, CO2, Radon, Temperature, Humidity, Atmospheric Pressure
$329.99
- + Connectivity: 2.4 GHz WiFi, Bluetooth, Other
- + Sensors: TVOC, PM2.5, CO2, Radon, Temperature, Humidity, Atmospheric Pressure
- - Price: $329.99 vs $179.99
- - Rating: 4.0 vs 4.4
What owners say
Owners of both Airthings monitors say the continuous radon data is the point, revealing swings with weather and season and confirming that mitigation works. Airthings 325 Corentium Home 2 owners single out simplicity: effortless pairing, a well-built unit, Good/Fair/Poor readouts and readings that line up with test kits, and their recurring wish is Wi-Fi, along with a couple of units that disagreed with a second meter. Airthings View Plus owners are struck by everything else it shows, CO2 climbing overnight and cooking spiking particulates, and like the Wi-Fi dashboard and fast replacements from support, while they complain about CO2 drifting high without fresh air, fixed alert thresholds and an unlit screen.
Frequently Asked Questions
Which is better overall: Airthings 325 Corentium Home 2 or Airthings View Plus?
For radon, the Airthings 325 Corentium Home 2, which is smaller, lasts longer on batteries and costs less. The Airthings View Plus is the better device if you want Wi-Fi and full air quality monitoring with PM2.5, CO2 and VOCs.
What is the biggest difference between the Airthings 325 Corentium Home 2 and the Airthings View Plus?
The Airthings View Plus is a Wi-Fi air quality station with seven sensors, while the Airthings 325 Corentium Home 2 is a Bluetooth radon monitor that also reads temperature and humidity.
Do the Airthings 325 Corentium Home 2 and the Airthings View Plus work with Google Home and Alexa?
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 simple, continuous radon monitoring with an on-device screen and years of battery life, and who checks results at home.
Who should buy the Airthings View Plus?
Homeowners who want radon plus CO2, PM2.5 and VOCs in one device, with Wi-Fi alerts and a web dashboard.
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