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Leaders in professional radon instrumentation and analysis solutions |
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Purchasing |
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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:
Parani SD1000 Serial to Bluetooth Adaptor $125.00 Complete with:
Lithium Ion Rechargeable Battery for SD1000 Adaptor. Optional16 hour battery $39.00 RAD H2O Water Accessory $1,257.00 Complete with:
RAD AQUA Continuous Radon-in-Water Accessory $1,235.00 Complete with:
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 Passive DRYSTIK, not in case, without pump or needle valve 12-inch model, $195.00 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 Complete Big Bottle RAD H2O System $766.00
CO2 Logger Available in three ranges: 0-1% (0-10,000 ppm), $844.00 CALIBRATION SERVICES RAD7 Calibration Contact Us RAD7 Thoron Calibration Specific Calibration of Thoron Sensitivity, Contact Us |
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About DURRIDGE |
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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 |
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Sales: Support: Phone: Fax: Offices: Map: |
support@durridge.com | Additional Support Contacts (978) 667-9556 (978) 667-9557 DURRIDGE Company, Inc. |
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DURRIDGE News |
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February 3, 2012 CAPTURE Software Update January 20, 2012 CAPTURE Software Update January 11, 2012 CAPTURE Software Update December 16, 2011 BIG BOTTLE RAD H2O Now Available November 23, 2011 CAPTURE Software Update November 11, 2011 CAPTURE Software Update October 24, 2011 CAPTURE Software Update October 17, 2011 CAPTURE Software Update September 20, 2011 CAPTURE Software Update September 2, 2011 CO2 Logger August 26, 2011 RAD7 User's Manual May 24, 2011 CAPTURE Software Update March 28, 2011 New DURRIDGE Office Location March 8, 2011 CAPTURE Software Update March 1, 2011 CAPTURE Software Update |
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Customer Testimonials |
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"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:
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."
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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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