Usually, one test kit is sufficient. All our radon samplers can measure an area up to 2,000 sq. ft. This does not refer to your entire house square footage; just the room of your home that you are testing. Radon levels can and often do vary from room-to-room.
In general, a single test is sufficient for most homes. Our instructions are designed to screen the home for radon using as few test kits as possible. To learn more about how this works, visit aelabs.com/strategy.
If you are wanting to find out the radon levels for different floors or rooms of your home, then you will need more than one test kit. You should place one test kit in each room you wish to test. In most cases, we recommend following the screening strategy first. If a concerning level of radon is found on your first test, additional testing is usually a good idea.