Leaders in professional radon instrumentation and analysis solutions

 

Purchasing

 

For sales in North America, FOB Bedford Massachusetts. For leasing and renting inquiries, please contact sales@durridge.com. Please see our Contact Information page for additional resources.

Price List


RAD7 Electronic Radon Detector $6,490.00

Complete with:

  • RADLINK Remote Control Software
  • Newhandy Infrared Printer, Battery Charger, rechargeable batteries & 3 extra rolls paper
  • External 12V Power Adaptor
  • 2 sets Velcro Tabs
  • 4 Drying Tubes
  • Gas Drying Unit
  • 5 lb Desiccant
  • 1 Dust Filter & 6 Uniflow Filters
  • Vinyl Tubing
  • Keyspan USA-19HS High Speed USB/RS232 Serial Adapter & Cable
  • CAPTURE data acquisition and analysis software

Parani SD1000 Serial to Bluetooth Adaptor $125.00

Complete with:

  • Adaptor with 100m wireless connectivity range, preconfigured for plug and play RAD7 compatibility
  • External 5V Power Adaptor
  • Complete documentation

Lithium Ion Rechargeable Battery for SD1000 Adaptor. Optional16 hour battery $39.00


RAD H2O Water Accessory $1,257.00

Complete with:

  • Stainless Steel Aerator & 2 Glass Frits
  • 18 Collection Vials, 40ml & 250ml
  • Vinyl Tubing & Fittings
  • 2 Inlet Filters
  • Purging Tube & 4 Desiccant Tubes

RAD AQUA Continuous Radon-in-Water Accessory $1,235.00

Complete with:

  • Temperature Probe
  • Lascar Electronics EL-USB-TC Temperature Logger
  • Three pairs of spray nozzles supplied (WL1/4, WL1 and WL4)
  • Capable of delivering 0.19 gpm, 1.14 gpm and 4 gpm, respectively, at 20 psi water pressure
  • Roll Teflon Tape

WATER PROBE Slow Response Monitoring of Radon in Water, $328.00


SOIL GAS PROBE

AMS Stainless Steel Probe, including Water Shutoff Valve, $650.00

DURRIDGE Regular Steel Probe $295.00

Water Shutoff Valve $241.00


DRYSTIK humidity exchanger

Active DRYSTIK, in case with pump and needle valve

    12-inch model, $502.00
    48-inch model, $730.00
    144-inch model, $1015.00

Passive DRYSTIK, not in case, without pump or needle valve

    12-inch model, $195.00
    48-inch model, $423.00


Duty Cycle Controller $435.00


Range Extender $741.00


EMISSION CHAMBERS

Soil Surface Emission Chamber $388.00

Hard Surface Emission Chamber $202.00


BIG BOTTLE RAD H2O
Individual components also available separately

Complete Big Bottle RAD H2O System $766.00     
includes all of the following:

  • Temperature Logger with Temperature Probe $260.00
  • Basic Big Bottle RAD H2O System without Temperature Logger or probe $506.00
    includes all of the following:

    • Aerator
    • Check Valve
    • 2.5L Jug with Airstones, Cap & Coupler
    • Bubble Trap
    • Tubing Set
    • Large Retort Stand with Clamp
Optional Extras:
  • Laboratory Drying Unit $78.00
  • Active DRYSTIK, 48" model, with Pump and Needle Valve (See above for pricing)
  • Additional 2.5L Jug with Cap, $17.00

CO2 Logger

Available in three ranges:

    0-1% (0-10,000 ppm), $844.00
    0-30% (0-300,000 ppm), $874.00
    0-100% (0-1,000,000 ppm), $974.00


CALIBRATION SERVICES

RAD7 Calibration Contact Us

RAD7 Thoron Calibration Specific Calibration of Thoron Sensitivity, Contact Us

 

 

About DURRIDGE


The RAD7 electronic radon detector was invented by Professor Lee Grodzins when he was the head of the radon program at the Massachusetts Institute of Technology. It was initially developed by NITON Corporation.

When NITON shifted their focus to XRF devices, DURRIDGE Company was formed to take over production and support of the RAD7. Since then the RAD7 has continued in uninterrupted production and development. About 3,000 of the instruments are in regular use world wide.

DURRIDGE Company now provides a wide range of accessories for the RAD7. We also offer calibration and maintenance services, and software for performing sophisticated RAD7 data analysis.

 

 

Contact Us


Email:
 

Sales:

Support:

Phone:

Fax:

Offices:

Map:


Dr. Derek Lane-Smith, President
derek@durridge.com

sales@durridge.com

support@durridge.com | Additional Support Contacts

(978) 667-9556

(978) 667-9557

DURRIDGE Company, Inc.
524 Boston Road
Billerica, MA 01821, USA

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DURRIDGE News

 

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.

CAPTURE Software Update
Graph and analyze RAD7 data with the free CAPTURE software for Windows and Macintosh. DURRIDGE's powerful software has been updated to version 4.7.7. This release addresses bugs and is recommended for all RAD7 users. Learn more here.

BIG BOTTLE RAD H2O Now Available
DURRIDGE is pleased to announce the availability of the Big Bottle RAD H2O. This product makes it possible for the RAD7 to measure concentrations of radon as low as 1 pCi/L (37 Bq/m3, 2.2 dpm/L) in 2.5L water samples. Learn more here.

CAPTURE Software Update
DURRIDGE's CAPTURE software has been updated to version 4.7.5. This release improves workflow and addresses data parsing issues. Learn more here.

CAPTURE Software Update
Graph and analyze radon data from your RAD7 with CAPTURE software version 4.7.4. Several improvements have made aimed at improving CAPTURE's reliability and ease of use. Learn more here.

CAPTURE Software Update
CAPTURE version 4.7.3 has been released. This release fixes minor graphing bugs and adjusts CAPTURE's default configuration to make it easier for first time users. Learn more here.

CAPTURE Software Update
CAPTURE version 4.7.2 has been released. The real time Chart Recorder has been significantly enhanced, and the main program window has been revised to make it easier to download RAD7 data. Learn more here.

CAPTURE Software Update
CAPTURE version 4.7 has been released. Now it is possible to monitor the status of a RAD7 in real time using a chart recorder and statistics panel. This update includes several other new features and enhancements. Learn more here.

CO2 Logger
DURRIDGE is pleased to announce the availability of the CO2 Logger. This instrument works in combination with the RAD7, detecting carbon dioxide levels in the sampled air. Learn more here.

RAD7 User's Manual
The RAD7 User's Manual has been updated. Users are encouraged to download the revised version of the manual from our Product Manuals page.

CAPTURE Software Update
CAPTURE version 4.6 has been released. Our redesigned RAD7 communications software now supports multiple simultaneous RAD7 connections. Learn more here.

New DURRIDGE Office Location
DURRIDGE has moved to a new office in Billerica, Massachusetts. Please note our new phone and fax numbers. See our contact information here.

CAPTURE Software Update
CAPTURE version 4.5.1 has been released. This version of our RAD7 communications software offers further refinement in response to customer feedback. Learn more here.

CAPTURE Software Update
CAPTURE version 4.5 has been released. This version introduces a wide variety of new features and improvements, and is recommended for all RAD7 users. Learn more here.


Older News

 

 

Customer Testimonials

 


From a Radon Professional:

"I want to let you know how much I have liked working with the RAD7 radon detector. I enjoy the ease of operation, and my customers appreciate the ability to see the print-out of results within 48 hours. I would recommend your equipment to any radon tester or mitigator for ease and reliability of operation."

From a Radon Mitigator:

"I have been using the RAD7 now for a few years, and I am very pleased with it. When searching for radon entry points in SNIFF mode I discovered that Thoron often shows in the spectrum printout, where radon enters the house. Measuring one half meter away from that point Thoron doesn't show. This is a very good help to find the entry points."

From an Environmental Laboratory:

"I purchased two of your RAD H2O instruments last year and have the following comments:

  • We find the instrument very user-friendly.
  • When side-by-side studies were run against our liquid scintillation unit we found the RAD H2O to be within +/- 5% of our Packard unit.
  • We find the instrument to be more hassle-free than the Packard unit because we no longer have to fool around with the Optifluor liquid.
  • Your unit's portability allows us to bring the "lab" to the customer. This is a good selling point from my marketing point of view.

If you have not guessed by now...we are very pleased with the RAD H2O. It performs better than I expected and I will recommend your product to my colleagues.""

From a Home Owner:

"I have successfully solved my radon problem. [The RAD7] performed very well and I may not have been able to solve my problem with any other technology."

 


Academic Accolades


From a University Professor:

"We have been measuring Rn for about 20 years -- mostly in water but in air as well. 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. The RAD7 is a very nice little device with features that one would only expect in much more expensive instruments."

From a University Graduate Student:

"The RAD7 has been an excellent purchase. It significantly helped a research project I was working on and I see many new research opportunities in the future using the RAD7. The machine and add-ons (RAD AQUA and RAD H2O) are all well documented and work very well and easily in the field. The greatest help and what really separates DURRIDGE from other companies is the unparalleled service I have been given. Answers and advice have always been quick, helpful and thorough."

From a University Professor:

"I have recently purchased the DRYSTIK Moisture Exchanger, a simple device developed by DURRIDGE Company to extend the life of the desiccant during the radon measurements using RAD7 and the accessory RAD H2O."

"I have found that the desiccant in the small drying tube lasts the whole day, instead of the 3-4 hours without DRYSTIK. In addition, the life of the desiccant in the laboratory drying unit is extended from 10 days to approximately 2 months of continuous use. This reduces the cost of replacing used desiccant with new Drierite."

"I am very pleased with the DRYSTIK and I will recommend this device to my colleagues."

From a University Professor:

"I currently have one RAD7, and I am very happy with it. I use it for both research and teaching, and I just love its range and endurance. At the moment, I am working on the research grant proposal and plan to ask for funds to buy 3 more units."

From a University Professor:

"I want to inform you that due to your suggestion that we familiarize ourselves with the new materials on your web-site, we have found Capture, and we are very much admire this program. It is very useful and allows us to save a lot of time. This represents serious progress for the company."

From a University Professor:

"I have been using the RAD7 over the last two years, and the instrument has happily survived pretty harsh conditions and several international travels and inquisitive customs' inspections. I am extremely impressed with its reliability, accuracy, and ease of use. It really is a little gem!"

From a University Professor:

"IT WORKED! Thank you so much for taking the time - on a weekend! - to explain the procedure to me. I am extremely impressed. If you ever need a testimonial on the instrument's performance and/or the service I received from you, you can certainly count on me. You have saved my trip to Brazil."

Another University Professor Wrote:

"I have four RAD7s and am about to purchase a fifth for some Greenland work. I have never had any major troubles with the instruments and found them to be EXTREMELY robust. I have rappelled into craters with them on my back and hauled them out. Probably a better testament of their robustness is that I have masters students take them into the field and they still work."

 

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RAD7
RAD H2O
RAD AQUA
Water Probe
Soil Gas Probe
DRYSTIK
CO2 Logger
Duty Cycle Controller
Range Extender
BIG BOTTLE RAD H2O
Emission Chambers
RAD7 Calibration
Thoron Calibration
RAD7 Repair
Firmware Upgrades
CAPTURE
DURRIDGE Terminal
DURRIDGE Translator
Product Manuals
Support Contacts
Research Papers
External Radon Links
Purchasing
About DURRIDGE
Contact Us
DURRIDGE News
Customer Testimonials