Radon Detectors: How to Choose and Where to Instal

Radon is a naturally occurring radioactive gas that can seep into homes from soil and rock. Because it’s invisible and odorless, testing is the only practical way to know whether indoor radon levels are high—and the quality of your result depends heavily on the detector you choose and where you place it.

Start with what you need to measure

Different detectors serve different purposes. Short-term devices can provide a snapshot suitable for faster decisions, while long-term tests are better for capturing seasonal variation and typically give a more representative annual average. Before buying, confirm the detector type, test duration, and whether the product is intended for residential radon measurement.