Quote:
Originally Posted by Calgary14
I bought one from Home Depot. It was around $20 and worked fine. Got a reading of around 100 which seems common
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The home depot ones are not recommended. Their accuracy is questionable and even if it is somewhat accurate it's a short term test. Short term tests tell you what your radon levels are over a three day period, day four can be completely different.
Radon levels in your home change about as often as the weather does. You and your neighbor can have completely different levels.