8 Best Home Radon Test Kits (November 2026)
The best home radon test kits include the First Alert Radon Gas Test Kit for a straightforward first screen, the PRO-LAB Radon Test Kit for Home for a 48-hour collection, and the Leaping Lynx Radon Test Kit for Home for a 48-hour kit with return mailer.
On this page (5 sections)
The First Alert Radon Gas Test Kit is our top pick for a home radon test kit because it combines a short 2–4 day sampling period with lab fees included, except for New Jersey state fees. If your home uses well water, see how to test water for radon.
For a 48-hour collection, consider PRO-LAB or Leaping Lynx; for a longer measurement period, Radonova samples for 90 days to 1 year.
We compared the kits by time spent collecting a sample, what happens after you send it, and how clearly the process is described. A quick collection window can be convenient, but the lab's turnaround and the return method also affect how soon you get an answer.
Our picks at a glance
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1
Best for a straightforward first screenFirst Alert Radon Gas Test Kit
9.7/10 our score
See it on Amazon -
2
-
3
Best for a 48-hour kit with return mailerLeaping Lynx Radon Test Kit for Home
9.5/10 our score
See it on Amazon
- 4
Check itIndoor Air Quality Test Kit by Detekt
Best for non-radon indoor checks - 5
Check itRadonAway Complete Radon Test Kit
Best for a 3–7 day sample - 6
Check itRadonova Radtrak³ Radon Detector for Home
Best for long-term sampling - 7
Check itempowerDX Express Radon Test Kit
Best for fast lab results - 8
Check itPRO-LAB Radon Test Kit for Home
Best for two same-location detectors
How we chose these home radon test kits
The best home radon test kit should match your timing and the amount of follow-through you want to handle. For well water, compare radon water test kits and their sampling options.
We compared each option using its stated sampling duration, lab fee details, return shipping information, and result timing.
Our score weighs those features against the needs of someone shopping for a home screening kit. It doesn't represent testing or a guarantee about the result in any particular home.
One entry needs a clear distinction: the Detekt kit is for mold and bacteria checks, not radon. It is included because it appears in the supplied product set, but it should not be used to measure radon or replace a radon-specific detector.
For general background, see What Is a Radon Test Kit? The Short Answer.
If you're deciding where and how to place a detector, How to Test for Radon at Home: A Quick Guide explains the basic process. If you’re sampling below grade, follow basement radon testing steps.
Compare sampling time, lab handling, and results
The main difference between these home radon test kits is how long the detector stays in place and what is included after collection. Use the comparison to narrow your choices, then read the individual notes for timing conditions and fees.
| Product | Best for | Sampling period | Lab handling | Results | Our score |
|---|---|---|---|---|---|
| First Alert Radon Gas Test Kit | a straightforward first screen | 2–4 days at home | Lab fees included except NJ state fees | Emailed within 72 hours of lab receipt | 9.7 |
| PRO-LAB Radon Test Kit for Home | a 48-hour collection | 48 hours | Lab analysis included | Email and text updates | 9.6 |
| Leaping Lynx Radon Test Kit for Home | a 48-hour kit with return mailer | 48 hours | Analysis included; return postage required | Typically 3–5 business days after lab receipt | 9.5 |
| Indoor Air Quality Test Kit by Detekt | non-radon indoor checks | No lab mailing required | 9.1 | ||
| RadonAway Complete Radon Test Kit | a 3–7 day sample | 3–7 days | Analysis and return USPS shipping included | Next day after lab receives device | 8.8 |
| Radonova Radtrak³ Radon Detector for Home | long-term sampling | 90 days to 1 year | Analysis and return postage included | After the detector is returned for lab analysis | 8.6 |
| empowerDX Express Radon Test Kit | fast lab results | Not specified here | Prepaid overnight FedEx return label | Same day after receipt before 10 am | 8.5 |
| PRO-LAB Radon Test Kit for Home | two same-location detectors | Short-term; duration not specified here | Lab fees included; prepaid return envelope | Within a standard work week | 8.3 |
The best home radon test kits
The First Alert kit is the most balanced first screen in this group, while the other radon-specific options suit shorter, longer, or differently handled samples. Pick by the collection window and the return steps you can follow.
First Alert Radon Gas Test Kit: Best for a straightforward first screen
- 2–4 day home sampling
- Lab fees included except NJ state fees
- Results emailed within 72 hours of lab receipt
- Recommended for use in the United States
A short home sampling period and included lab fees make this a practical first screen. Allow time for the lab to receive the sample before counting the stated result window.
Pros
- Short sampling period
- Lab fees included except NJ state fees
- Results emailed after lab receipt
Cons
- NJ state fees are excluded
- Recommended for use only in the United States
The First Alert Radon Gas Test Kit is our first choice for a straightforward screening process. It takes 2–4 days in the home, and the kit includes test materials and lab fees, with New Jersey state fees excluded.
First Alert says results are emailed within 72 hours of lab receipt. That clock begins after the sample reaches the lab, so shipping time adds to the overall wait.
The kit is listed under the EPA radon gas measurement proficiency program and is recommended for use only in the United States. Its short collection period makes it easier to schedule than a long-term detector.
If you want brand-specific details before choosing, read our First Alert RD1 Radon Test Kit Review. Also check Do Radon Test Kits Expire? if a kit has been stored for a while.
PRO-LAB Radon Test Kit for Home: Best for a 48-hour collection
- 48-hour collection period
- Lab analysis included
- Email and text notifications
- Return mailer included
This short-term kit pairs a 48-hour collection period with included lab analysis. Email and text updates can help you follow the sample from receipt through results.
Pros
- 48-hour sampling
- Lab analysis included
- Email and text notifications
Cons
- One detector is included
- Results depend on the lab completing analysis
PRO-LAB's single-detector kit is a strong pick when you want a 48-hour collection period. Lab analysis is included, and the kit uses email and text updates to keep you informed as the detector is received and results are delivered.
The shorter collection period can fit a quick screening plan, but it doesn't mean the complete process takes only 48 hours. You still need to return the detector and wait for analysis.
The product description says the kit uses a passive collection method and includes a return mailer. Place it in a frequently occupied room according to its instructions, then seal and return it after the exposure period.
For other conditions that can change results, read what can affect a radon test.
Use this option if you prefer one detector and a clearly stated collection time. The separate two-detector PRO-LAB kit below may suit a different sampling plan.
Leaping Lynx Radon Test Kit for Home: Best for a 48-hour kit with return mailer
- 48-hour sampling period
- NRPP-certified lab analysis included
- Results typically 3–5 business days after lab receipt
- Return postage required
This kit includes a return mailer and lab analysis for a 48-hour sample. Plan for return postage and allow several business days after the lab receives the detector.
Pros
- 48-hour collection
- Lab analysis included
- Instructions and return mailer included
Cons
- Return postage is required
- Results timing starts after lab receipt
Leaping Lynx also uses a 48-hour sampling period, with lab analysis included and a return mailer in the kit. Its stated result timing is typically 3–5 business days after the laboratory receives the sample.
The return postage is required, so account for that step when estimating total time and cost. The lab's turnaround begins after receipt, not when you first place the detector.
The kit includes instructions and registration materials, which help make the send-back steps clear. The product details identify the lab as NRPP-certified and describe an EPA-recognized method.
Choose Leaping Lynx if you want a 48-hour collection and can handle the return postage. To understand how kit programs and government guidance relate, read Does the EPA Approve Radon Test Kits and Monitors?.
Indoor Air Quality Test Kit by Detekt: Best for non-radon indoor checks
- Tests indoor air, surfaces, and HVAC for growth
- Includes agar slides, vent clips, swabs, and gloves
- No lab mailing required
This kit is for mold and bacteria checks, not radon measurement. It does not belong in a radon comparison as a substitute test, but may suit a separate indoor air investigation.
Pros
- Checks several locations and surfaces
- Includes sampling materials
- No lab mailing required
Cons
- Does not test for radon
- Growth may take 24 hours or longer
The Detekt Indoor Air Quality Test Kit is not a radon test kit. It focuses on mold and bacteria checks using indoor air, surface, and HVAC sampling, so it cannot answer whether a home has high radon.
Its included materials are agar slides, vent clips, swabs, gloves, and instructions. No lab mailing is required, and the product description says growth may appear as fast as 24 hours.
Keep it separate from radon screening. If your goal is to measure radon, choose one of the radon-specific kits in this guide; if you're checking for mold or bacteria, use this kit for its stated purpose.
RadonAway Complete Radon Test Kit: Best for a 3–7 day sample
- 3–7 day sampling period
- NELAP approved lab analysis included
- Return USPS shipping included
- Results next day after lab receives device
RadonAway offers a longer short-term sampling window and includes analysis and return shipping. Its next-day result timing begins when the lab receives the device.
Pros
- Sampling window of 3–7 days
- Return shipping included
- Online and email report
Cons
- Longer sampling than a 48-hour kit
- Recommended for contiguous U.S. use
RadonAway gives you a 3–7 day sampling window, which is longer than the 48-hour options but still a short-term test. Lab analysis and return USPS shipping are included with the kit.
The brand says results are provided the next day after the lab receives the device. It also offers a report online and by email, so you can access the results through either route.
This kit suits you if you can leave the detector in place for several days and want return shipping included. The stated use recommendation is for the contiguous United States.
Radonova Radtrak³ Radon Detector for Home: Best for long-term sampling
- Sampling from 90 days up to 1 year
- Lab analysis and postage included
- Measures daily fluctuations over the sampling period
Radonova is the long-term option here, with a 90-day minimum and sampling up to a year. Choose it when a longer measurement period fits your timeline.
Pros
- Long-term sampling option
- Return postage included
- Measures daily fluctuations
Cons
- Requires at least 90 days of sampling
- Not a quick screening option
Radonova Radtrak³ is the long-term option in this roundup, with a sampling period from 90 days to 1 year. It is designed to measure daily fluctuations over that extended period rather than provide a quick short-term screen.
Setup and registration are described as taking a few minutes. After the sampling period, return postage is included for lab analysis and results.
Choose this detector if you can leave it in place for at least 90 days and want a longer measurement window. It is not the right fit when you need a quick answer for an immediate decision.
For next steps after a high result, learn about the role of a best radon mitigation fan.
A test result is a starting point for deciding what to do next.
empowerDX Express Radon Test Kit: Best for fast lab results
- Prepaid overnight FedEx return label
- Same-day results after lab receipt before 10 am
- NJ residents pay a state-mandated lab fee
The stated same-day result window is tied to the lab receiving the sample by 10 am. New Jersey residents pay a separate state-mandated lab fee upon registration.
Pros
- Prepaid overnight return label
- Same-day results under the stated receipt condition
- Lab fee included except NJ state fee
Cons
- Sampling period is not specified here
- Same-day timing depends on receipt before 10 am
The empowerDX Express kit stands out for its prepaid overnight FedEx return label and stated same-day results after the lab receives the sample before 10 am. If the sample arrives later, the same-day timing condition does not apply.
New Jersey residents pay a state-mandated lab fee upon registration. The kit is intended for customers who reside in the United States.
The collection period is not specified in the product information used here, so confirm that timing before you plan around a deadline. This pick makes the most sense if the return and result process suits your schedule.
PRO-LAB Radon Test Kit for Home: Best for two same-location detectors
- Two short-term detectors
- Can be used at the same time and location
- Lab fees included
- Standard results within 1 week
This two-detector kit lets you collect samples at the same time and location. Its stated results window is within a standard work week after the sample is sent.
Pros
- Two detectors included
- Lab fees included
- Prepaid return envelope
Cons
- Sampling duration is not specified here
- Results can take up to a standard work week
This PRO-LAB kit contains two short-term detectors that can be used at the same time and location. Lab fees and a prepaid return envelope are included, with standard results within 1 week.
The product description says the pair can be used for real estate transactions, but follow the instructions and any requirements that apply to your situation. The exact collection duration is not specified here, so check the kit instructions before starting.
Choose this version if two detectors match your sampling needs. If you only need one device and a known 48-hour period, compare it with the single-detector PRO-LAB kit above.
How do you choose a home radon test kit?
Choose a kit by the sampling window first, then check the lab process and return requirements. To decide when to test, see when radon testing is necessary.
That keeps the practical details in view instead of focusing only on the detector itself.
Is a 48-hour home radon test kit the right fit?
A 48-hour kit can work when you want a defined short collection period and can send the sample back promptly. PRO-LAB and Leaping Lynx both state 48 hours, but their result timing and return postage details differ.
PRO-LAB includes lab analysis and describes email and text notifications. Leaping Lynx includes analysis and a return mailer, but postage is required, with results typically 3–5 business days after lab receipt.
When does a longer radon test kit make sense?
A longer test can fit when you can leave the detector in place for months and want a measurement over an extended period. Radonova's sampling range starts at 90 days and extends up to 1 year.
That schedule takes more time than a short-term test. Check the placement instructions and make sure the detector can remain undisturbed for the intended period.
What should you check about lab fees and return shipping?
Check whether analysis, return postage, and state fees are included before you begin. Those details differ across these kits, even when each one involves sending a detector to a lab.
First Alert excludes New Jersey state fees, Leaping Lynx requires return postage, and empowerDX charges New Jersey residents a separate state-mandated fee. RadonAway includes return USPS shipping, while Radonova includes postage for return and analysis.
Verdict: Which home radon test kit should you choose?
Choose First Alert for a balanced first screen with a short sampling period and lab fees included except for New Jersey state fees. Pick PRO-LAB or Leaping Lynx for a stated 48-hour collection, RadonAway for 3–7 days with return shipping included, or Radonova when you want a long-term test.
For the quickest stated lab result, empowerDX gives a same-day window if the sample arrives before 10 am.
If you're comparing what counts as radon testing and why it matters, read What Is Radon Testing? A Beginner’s Guide.
Our top 3 picks at a glance
-
1
Best for a straightforward first screen
First Alert Radon Gas Test Kit
9.7/10 our score
See it on Amazon -
2
-
3
Best for a 48-hour kit with return mailer
Leaping Lynx Radon Test Kit for Home
9.5/10 our score
See it on Amazon
Frequently asked questions
How long does a home radon test take?
It depends on the kit. The options here range from 48-hour collection to 3–7 days, while Radonova is designed for 90 days up to 1 year.
Remember that the collection period and the time for shipping and lab analysis are separate parts of the process.
Are lab fees included with home radon test kits?
Several kits here include lab analysis, but state fees and return shipping vary. First Alert excludes New Jersey state fees, Leaping Lynx requires return postage, and empowerDX charges New Jersey residents a state-mandated lab fee.
Check those details before choosing a kit.
Should I choose a short-term or long-term radon test?
Choose based on how quickly you need a screening result and how long you can leave a detector in place. Short-term options here collect samples in 48 hours or several days, while Radonova's sampling period begins at 90 days.
Follow the kit instructions for placement and return.
Does the Detekt Indoor Air Quality Test Kit test for radon?
No. The Detekt kit described here tests for mold and bacteria in indoor air, on surfaces, and in HVAC locations; it is not a radon detector.
Use a radon-specific kit for radon screening, and treat the Detekt kit as a separate tool for its stated test focus.
