For the professional

Meet Corentium Pro, a favorite of home inspectors and radon professionals. Fully AARST-NRPP and NRSB certified for the North American market and beyond.

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Certified for the North American market and beyond



Corentium Pro samples indoor air through a passive diffusion chamber, using alpha spectrometry to precisely calculate the radon level. Radon is detected using silicon photodiodes to both count and measure the energy of alpha particles resulting from the decay chain of radon gas. The instrument is calibrated to reference instruments in accredited laboratories and is AARST-NRPP and NRSB certified.

The standard deviation from the exact radon level is less than 7% + 5 Bq/m3 after 24 hours (US: 7% + 0.12 pCi/L) and less than 5% + 2 Bq/m3 after 7 days (US: 5% + 0.05 pCi/L)

New Pro App!

Generate a report from your smartphone on the spot, add notes and customization and send it as a PDF to multiple email addresses with Bluetooth smart connectivity.

The advantage of the Corentium Pro is that the app, software and firmware are updated regularly. We continually improve every aspect of our devices with the ultimate goal of delivering the best professional radon measurement tool on the market.

Join 100's of other radon professionals using Corentium Pro to grow their business.



Android and iOS

Pro Dashboard

Customize dataset templates, generate reports, and monitor devices remotely


3 AA batteries included with an estimated 1.5 year battery life


Becomes more accurate over time using auto-calibration

Short, long term

Take short- or long-term readings for 2 days, 7 days or up to a year


Store all your measurements for up to 5 years--that is over 900, 48-hour measurements!

A favorite of home inspectors

Corentium Pro is fully AARST-NRPP and NRSB certified for the North American market and beyond.

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