RSSI's Alpha-track Radon Detector

Testing your home for radon is easy, inexpensive, accurate, and reliable.  RSSI manufactures and analyzes the most accurate alpha-track radon gas detector available today.

Each individual do-it-yourself radon test kit includes:

  • One RSSI Alpha-track radon gas detector which can be used for testing periods from 8 days to one year;

  • Complete instructions; and

  • In the United States, postage-paid return mailer.

RSSI do-it-yourself radon gas test kits cost $25 per kit.  Discounts are available with purchases of six or more kits.  Price includes shipping, analysis, and report.  Order Test Kits  

RSSI's Alpha-track radon gas detector does not require closed house conditions and is not affected by heat, humidity, or shipping delays.  To view technical information regarding RSSI's Alpha-track radon detector, visit our Technical Information page.

Alpha-track detectors can also be purchased in large-quantity professional packaging for schools, commercial buildings, multi-unit testing projects and for use by radon professionals.  For more information, see Testing Large Buildings and Radon Professionals.

How an Alpha-track Radon Detector Works

Each RSSI Alpha-track radon gas detector contains a detector element, called a foil.  When radon atoms decay inside the detector, they release alpha particles.  If the alpha particles strike the foil, they make microscopic tracks in the surface of the foil.  When the detector is analyzed, the foil is chemically treated to enlarge the alpha tracks, which are counted on an automated system.  The average radon level is calculated from the number of tracks and the number of days the detector was exposed.  This level is reported in picocuries per liter (pCi/L).  

Radon levels vary in daily and seasonal cycles, and in response to weather conditions and ventilation patterns.  For these reasons, it is preferable to make the test period as long as possible.  A full year test provides the most reliable prediction of future radon exposure and health risk.  However, RSSI's Alpha-track detector can be used for tests as short as 8 days.

Any level of radon creates a risk of lung cancer.  The US EPA recommends that, to reduce the risk of lung cancer, corrective action be taken in every home with radon above the action level of 4 pCi/L.

One out of every 15 homes in the United States has radon levels above 4 pCi/L.  Most homes can have their radon levels lowered to below 2 pCi/L.  New homes can be designed to prevent high radon levels.



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