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Radon and Radon Monitoring


Radon is a naturally occurring, odorless radioactive gas measured in picocuries per liter (pCi/L) of air. Radon gas from the soil can enter a home or building through dirt floors, hollow-block walls, cracks in the foundation floor and walls, and openings around floor drains, pipes, and sump pumps. The EPA (U.S. Environmental Protection Agency) recommends that action be taken to reduce radon levels if the estimated annual average is 4 pCi/L or higher.


Radon gasses are more concentrated in the lower levels of the home (basements, ground floors, and first floors). Radon problems have been identified in every state and EPA estimates that one in 15 homes in the United States has an elevated radon level (4 pCi/L or more). Elevated concentrations of Radon


According to the Environmental Protection Agency (EPA), radon is the second leading cause of lung cancer in the U.S. causing approximately 21,000 lung cancer related deaths annually. Radon gas decays into radioactive particles that can get trapped in your lungs when you breathe. As they break down further, these particles release small bursts of energy. This can damage lung tissue and lead to lung cancer over the course of your lifetime


There is a wide field of applications of Radon measurements from radon risk assessment to geological survey. Our dedicated range of products and accessories has been especially designed to fit these needs and to provide accuracy for short and long-term monitoring of radon concentration (indoor and outdoor, water and soil gas analysis), radon surveillance and mitigation at workplaces and geological surveys.


What are the Radon levels near you?  Click here to find out.




AlphaE Continuous Radon Monitor 


Radon Monitor


The AlphaE is a versatile device for fast radon monitoring in buildings, outdoors or mines. Due to its light-weight and small dimensions, it can also perfectly be used to measure the personal radon exposure and to manage personal dose.   AlphaE is fast and accurate providing a fast reliable measurement after 2 hours (faster response with higher radon levels). Low radon levels below 100 Bq/m³ (2.7 pCi/l) can be measured as specified by the latest World Health Organization (WHO) recommendations (12% uncertainty at 1 sigma/24 hours).


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AlphaGUARD Portable Radon Monitor


Radon Monitor



The AlphaGUARD offers high detection efficiency in radon Monitoring. AlphaGUARD incorporates a pulse-counting ionization chamber (alpha spectroscopy).  AlphaGUARD offers high detection efficiency, a wide measurement range, fast response and permanent, maintenance-free operation with long-term stable calibration. No pump is required when operating in diffusion mode (e.g. long-term monitoring) and the instrument is insensitive to both, high humidity and vibrations.


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