In an effort to limit
community transmission of COVID-19, RSSI is reducing in-office
staff time. RSSI is still open for business, but as a
result of the reduced staffing, turn-around times for
responses, order fulfillment, lab analyses, and instrument
calibrations may increase.
Where should I place my detector?
A. Radon levels vary considerably from location to location
within the same building. Radon frequently enters from the
soil underneath the basement or slab, and radon levels are usually
highest in the lowest level of the building.
US EPA uses the terms "lowest level ... suitable for
occupancy ... without renovations" in recommending a location
to test for radon. If you have a lowest level with a
bedroom, office, or family room, you should set up your radon
detector in at least one of these rooms. If you rarely use
the lowest level in your home, set up a radon detector in a
frequently used room on the next lowest level.
a radon detector in the breathing zone, 2-6 feet above the floor,
and away from drafts, exterior walls, windows sumps, drains, or
doors. Radon may enter a building through cracks in the
foundation or through sumps or drains and will usually be higher
near these entry points. More detailed instructions are
included with each RSSI Alpha-track radon test kit.
What if my detector was moved or opened?
Moving the detector does not effect results if it remains in the
breathing zone of the same room. If your detector has been
opened or rattles, call us at 800-762-7774.
What if I lost my return mailer box?
If you lost your mailer, use a padded envelope or small cardboard
box and mail it to the
address on the detector.
What if I lost my Data Card?
If you lost your Data Card you can Download an RSSI Consumer Data Card Form.
What does my result mean?
See our Radon Health Risks chart
Back to Radon Page