Leaders in professional radon instrumentation and analysis solutions

DURRIDGE is a leading provider of professional radon detection equipment. Since 1997 DURRIDGE have offered world-class radon detection solutions for business, universities, and governments worldwide. Our RAD7 continuous radon gas monitor features precise measurement far exceeding EPA accuracy standards.

The RAD7 is the best commercially available instrument for measuring Rn that I have ever seen. We originally bought one - we now own 12 and may purchase more.

-From a university professor
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DURRIDGE News

CAPTURE Software Update
Graph and analyze RAD7 data with CAPTURE software for Windows and Macintosh. DURRIDGE's powerful RAD7 software has been updated to version 4.8.4. This release introduces a streamlined system of humidity correction, as well as custom RAD7 naming, and features for conveniently downloading data from multiple devices simultaneously. It is recommended for all RAD7 users. Learn more here.

DRYSTIK Model ADS-2
DURRIDGE is now offering a line of all-new DRYSTIKs for removing moisture from air samples. The DRYSTIK Model ADS-2 features a built-in duty cycle controller and an electronic interface for customizing pump settings. The old Active and Passive DRYSTIK models have been discontinued. We continue to offer the Duty Cycle Controller as a stand-alone product.

CAPTURE Software Update
DURRIDGE's CAPTURE software has been updated to version 4.8.3. This release features significant performance enhancements, as well as integrated statistics and spectrum panels for improved ease of use. Several additional refinements have resulted in a must-have upgrade. Learn more here.

CAPTURE Software Update
Our RAD7 graphing and analysis software has been updated to version 4.8.1. This release features numerous improvements to the Chart Recorder, and CAPTURE's data combining features are now more powerful and versatile. In addition, refinements have been made to CAPTURE's support for the RAD AQUA and RAD H2O accessories. Learn more here.

CAPTURE Software Update
DURRIDGE's CAPTURE software has been updated to version 4.8. Our RAD7 communications software now includes support for the new BIG BOTTLE RAD H2O accessory. In addition, CAPTURE's real-time Chart Recorder has been enhanced. Learn more here.

CAPTURE Software Update
DURRIDGE's CAPTURE software has been updated to version 4.7.8. This release introduces useful new file formats and includes several Windows-specific improvements to enhance reliability and ease of use. We have also improved the accuracy of the Spectrum Window and made the Chart Recorder more responsive. Learn more here.

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BIG BOTTLE RAD H2O
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