Radon Corporation of America offers InterNACHI deal on calibration services.


Nick: Please change the reference to “Radon Testing Corporation of America” to “Radon Corporation of America” These are two different companies. Radon Corporation of America is the one offering the free shipping. Joe Mahr


This company is not accepted in the State of Ohio and I would not use them.
They caused me a lot of grief last year as I had to have all my monitors re calibrated to obtain my license.

Sun Nuclear really helped me out and I will be using them from now on.