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Radon detector

A simple and easy-to-use digital radon gas detector with display showing short and long-term averages.
Can't be more than 21000

Limited Black Edition

The radon detector you trust, now in black

Corentium Home Limited Black Edition is the same simple, always-on radon detector as the original. Same sensor, same on-screen readings, same battery life. The only difference is the finish, made to blend in on a dark shelf or in a finished basement.

  • Short- and long-term radon averages on the built-in display
  • Up to 2 years on 3 AAA batteries, no cables or Wi-Fi needed
  • No charcoal kits, no lab fees, no waiting for results in the mail
Corentium Home Limited Black Edition radon detector, front view with long-term and short-term radon averages in pCi/L

Monitor the air around you

You can't see or smell radon

Radon is a natural radioactive gas that seeps into homes from the ground, often collecting in basements and lower floors. The EPA calls it the leading cause of lung cancer among non-smokers. The only way to know your level is to measure it.

Learn more about radon
Corentium Home Limited Black Edition at a three-quarter angle, a compact radon detector sized for any shelf or table
Close-up of the Corentium Home Limited Black Edition display showing long-term and 7-day short-term radon averages

Simply reliable

A digital radon detector that just works

Built on the same radon sensing technology used by thousands of radon professionals. Place it, switch it on, and read your levels right on the screen.

Trusted radon technology
The same sensor technology radon professionals rely on, in a detector made for your home.
On-screen results
See rolling short- and long-term radon averages right on the built-in display.
Battery-powered, cable-free
Runs up to 2 years on 3 AAA batteries, so you can place it in any room without an outlet.
Long-term peace of mind
Monitor to find out if you have a radon problem, then keep monitoring to confirm a fix is working.
No lab fees
Skip single-use charcoal kits and lab waits. Check your readings any time, as often as you like.
Easy reporting
Generate a radon self-inspection report to keep for your records.

Test, fix, confirm

One detector for every stage

  1. Find out where you stand

    Place it in the lowest lived-in level of your home and let it run. Your averages build up on the screen over time.

  2. Act if levels are high

    The EPA recommends fixing your home if radon is at or above 4 pCi/L.

  3. Confirm the fix works

    Keep monitoring after mitigation to make sure levels stay down, season after season.

Corentium Home Limited Black Edition with 3 AAA batteries, powering up to 2 years of cable-free radon monitoring

Potentially HSA and FSA eligible

Airthings has partnered with Truemed, so you may be able to use pre-tax HSA or FSA dollars for your detector.

  1. 1.Buy your detector, then complete Truemed's short intake form.
  2. 2.If approved, Truemed sends a Letter of Medical Necessity within 24 hours.
  3. 3.Submit your receipt and the letter to your HSA or FSA provider for reimbursement.
Learn about HSA/FSA eligibility

Free 5-year extended warranty

Register your Corentium Home within 30 days of purchase to get a free 5-year extended warranty. Registration is free, and your standard warranty applies either way.

Register your warranty

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