C-101 - Radon and Radon Decay Product Measurement Course (CERTI-1)

Entry Level course which includes training required for becoming certified in radon measurement.  This popular online course was recently updated (Jan 2016) to include video of a classroom session.  It still includes many extras including business resources and online quiz questions designed to help you prepare for the national certification exam.  Students also have access to the audio version of the course. This course is also a prerequisite course for the Radon Mitigation Entry Level Course.
Sales price $325.00
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This course is also a prerequisite course for the Radon Mitigation Entry Level Course. - If you are interested in both courses, you can purchase them together at a discounted price ($695 Total - $105 discount)  -  Within shopping cart include Coupon Code:  Bundle

The course includes a comprehensive and easy to use format of video instruction which allows you to study the material at your own pace. The video instruction is supplemented with a Course Manual and with many extra supplemental resources which includes audio interviews with experts within the radon industry.  This course is designed to provide you with all the instruction you need for becoming certified as well as valuable practical advice and resources for managing your radon business.  With an impressive 92% passing rate on the certification exams, these courses have proven to be successful and popular in preparing students for the certification exam and for conducting business.  

There is approximately 20 hours of coursework, including watching videos; online resources such as, protocols, and publications; and quizzes that are taken as you progress through the course (not timed and may be taken unlimited times).  There is no time limit for taking the course, and even after completion you continue to have access to the course in order to refer back to resources.

CERTI students also have access to business tools such as sample contracts, and warranties.  We are also available by phone during and after the course for any questions concerning the course or radon situations you come across on the job.

Course not available in: Florida, Illinois, New Jersey, and Ohio

Course Includes:
  • Video Instruction 
  • Course Manual 
  • Online Resources of publications, protocols, audio interviews with radon experts
  • Online Quizzes
  • Downloadable Course Certificate


  • Download/Streaming - No course materials will be shipped - everything you need is available to access and download online.

  • Materials Shipped - This option includes shipment by U.S. Priority Mail in the continental U.S. of course materials which includes a binder with the course manual and a CD with the audio tracks.  You also have access to all course materials online.  Cost - $45 

paper exam


National Certification Exam: Purchased separately and available nationwide through PSI LaserGrade.


Wednesday, 13 November 2019
Jasmine said: I recommend 5/5
Monday, 11 November 2019
Tyler said:

The quizzes were extremely helpful in studying for the exam. 

Monday, 11 November 2019
Tyler said:

The quizzes were extremely helpful in studying for the exam. 

Tuesday, 29 October 2019
Mike said:

The videos were easy to watch. with a lot of information, but not to much in one session

Monday, 28 October 2019
Elmer said: I recommend 5 out of 5
Monday, 28 October 2019
William said:

Found the videos to be very helpful! The instructor was great!

Monday, 28 October 2019
Dustin said:

Very knowledgeable instructor, great content and very thorough. 

Sunday, 27 October 2019
Jodi said: 5 out of 5
Thursday, 24 October 2019
Ronald said:

Excellent and knowledgeable instructor.

Friday, 18 October 2019
alsradonpro said:

I found the course to be extremely informative and easy to follow. 

Monday, 14 October 2019
Todd said:

I thought the coarse was well executed and presented.

Monday, 14 October 2019
Peter said:

Very helpful.  Very thorough.  

Saturday, 12 October 2019
Jonathan said:

Good course.

Friday, 11 October 2019
Timothy said:

Found the course very informative and enjoyed the instructional videos.

Saturday, 05 October 2019
Gabriella said:

It was great! I like the clear voice of the instructor and the slides. The images in the course manual required a magnifying glass in addition to reading glasses! The course content was relevant and delivered at a good pace. A couple of sections had too much material, in my opinion and could have been broken up into smaller chunks. Even after delivering all that content, Doug still kept it fresh and lively. I feel fortunate to have had him as a teacher on this wide-ranging and technically-intensive topic. 

Friday, 04 October 2019
Molly said:
Sunday, 29 September 2019
Arnold said:

This course was helpful because I can use the certification to enhance my knowledge in Residential Inspection Services.  

Thursday, 26 September 2019
Daniel said:

I really enjoyed the course. A bit challenging, but extremely informative. I'm looking forward to getting into the business!

Tuesday, 24 September 2019
Alex said:

Overall good course, a little dry at times. Good use of media. 

Monday, 23 September 2019
Peyton said:

I not only learned about radon but also took a lot from marketing and the instructor was one of the best I've seen in keeping my attention

Kay Kirkland
Wednesday, 18 September 2019
Damon said:

thank you for the info.

Wednesday, 18 September 2019
Joel said:
Monday, 16 September 2019
Douglas said:

Very well done!

Monday, 16 September 2019
Douglas said:

Very well done!

Friday, 13 September 2019
Sean said:

Very education program.  Very happy that I decide to go with your team. 

Thank You

Friday, 13 September 2019
Edwin said:

Great Material.  Lots of knowledge conveyed!!

Tuesday, 27 August 2019
John said:

Doug did a great job.  

Tuesday, 27 August 2019
Henry said:

Great job.

Robert Kuhn
Wednesday, 14 August 2019
Craig said:
Thursday, 18 July 2019
Justin said:

As a new commercial and residential property inspector being certified in radon measurement was crucial to my business.  This was an exceptional course, with a ton of excellent information and I can confidently report to my clients about radon testing results. 

Wednesday, 17 July 2019
Lora said:

The course was thorough informative and understandable

Ethan Dirks
Saturday, 29 June 2019
Jeremy said: I recommend this course
Thursday, 20 June 2019
Matthew said:

Another well written and easy to understand course by Mr. Kladder.

Tony Mashhour
Wednesday, 19 June 2019
Kevin said:

Great course. 

Wednesday, 19 June 2019
Yeshaya said:

very clear and to the point

Saturday, 15 June 2019
Tony said:

easy to follow.  very informative     

Wednesday, 12 June 2019
Daniel said:

I learned a lot more than i was expecting. It was very thorough

Tuesday, 11 June 2019
Louis said:

This was a great course. I appreciate the home page and that we can utilize this information even after completion. I really like the online course and the flexibility I have to complete the course. That works very well with my schedule. 

Friday, 07 June 2019
Bradley said:
Thursday, 23 May 2019
Tony said:

Really enjoyed the experience of being home schooled. I enjoyed the side comment rom Doug 

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