Airthings 2989 View Radon vs Airthings 325 Corentium Home 2

Airthings 2989 View Radon is the stronger overall pick because its Wi-Fi enables remote access, alerts and weekly reports from anywhere, and it covers the fuller alert set. Airthings 325 Corentium Home 2 is the more affordable of the two and earns a higher owner rating, but it only syncs over Bluetooth when the app is in range.

Connectivity. The View Radon has 2.4GHz Wi-Fi, so readings, alerts and reports reach you wherever you are, and it can even serve as a hub for other Airthings devices. The Corentium Home 2 is Bluetooth-only: its LCD always shows current levels, but the app updates only when you are nearby.

Yes, but different types. The Airthings 2989 View Radon uses an e-ink screen, while the Airthings 325 Corentium Home 2 uses an LCD with rolling radon averages and simple Good, Fair or Poor indicators. Both also track temperature and humidity alongside radon.

Both run about 3 years on AA batteries. The Airthings 2989 View Radon adds a USB-C option so you can leave it permanently powered, which the Airthings 325 Corentium Home 2 does not offer; the Corentium needs only two AA cells versus six for the View.

Choose Airthings 2989 View Radon if you want to check radon remotely, get alerts away from home, or build a multi-sensor Airthings setup with the device acting as a SmartLink hub. It is the more connected, more expandable option of the two.

Choose Airthings 325 Corentium Home 2 if you mainly want a well-rated, easy-to-read radon monitor for the room it sits in, at a lower price. You still get app history, a 5-year warranty and Google Home, Alexa, Home Assistant and IFTTT support; you just check readings in person.