Two-Pack: AccuStar Charcoal LS CLS 100i Short Term Radon Gas Test Kit / 48-96 Hour Testing (Please Note: These Test Kits are Not Valid in New Jersey)

This agrees with a test I did 20 years ago. I used another product that gave me a false positive.

Fast shipping & reliable testing lab.

Great price

I have bought Radon test kits before. Some are worthless but this one was a very good one. You have to follow instructions and they are easy. The results were fast and they came via email. I would use them again if the need arises.