Airthings 325 Corentium Home 2 vs Aranet Radiation

The Airthings 325 Corentium Home 2 wins overall on warranty, connectivity, integrations and sensors, thanks to its radon, temperature and humidity tracking. The Aranet Radiation costs less and runs longer between battery changes, but measures a different hazard entirely.

What they detect. The Airthings 325 Corentium Home 2 tracks radon, temperature and humidity. The Aranet Radiation tracks ionizing radiation dose rate and total dose instead, and has no radon, temperature or humidity sensor at all.

No. The Aranet Radiation has no radon sensor, so anyone concerned about radon needs a dedicated radon detector such as the Airthings 325 Corentium Home 2, regardless of the rest of the spec sheet.

The Aranet Radiation, which is rated for noticeably longer than the Airthings 325 Corentium Home 2 on a set of two AA batteries, thanks to its low-power e-ink display.

Choose it if radon is your concern. It presents results as simple Good, Fair or Poor readouts, tracks temperature and humidity alongside radon, and works with Google Home, Alexa, Home Assistant and IFTTT.

Choose it only if background ionizing radiation, not radon, is what you want to monitor continuously. Its lower price and longer battery life do not change that it cannot detect radon at all.