Airthings Corentium Home Radon Detector — Battery-Powered, 24h First Reading! $140.41 CAD (22% Off)

Amazon.ca currently has the Airthings Corentium Home radon gas detector (Canadian version, Bq/m³ units) for $140.41 CAD (list $179.99, 22% off). Prime members ship free; non-Prime orders over $35 ship free.

Radon is colourless, odourless, and the second-leading cause of lung cancer after smoking — and levels in many Canadian basements run high. The Corentium Home is the first battery-operated digital radon detector, so three AAA batteries are all it needs; no outlet, just move it room to room.

The LCD gives you a first reading within 24 hours, then tracks 1-day, 7-day, and a full year of history. Because radon fluctuates day to day, long-term monitoring beats a one-shot test kit — and unlike traditional kits, there's nothing to mail to a lab, no weeks of waiting, and no lab fees.

It uses alpha spectrometry with commercial-grade internal architecture; the algorithms adapt to the environment and filter out external interference, which puts its accuracy near the top of its class. In normal home use it needs no annual calibration and is rated to last over 10 years.

It sits at #2 in Smoke Detectors & Fire Alarms with 2,953 ratings at 4.6 stars. If you've just moved into a house with a basement, or you want to keep a long-term eye on this number, ~$140 is a one-time cost for years of peace of mind. Comes with 3 AAA batteries, a bilingual quick-start guide, and Airthings' 12-month warranty.

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