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First Alert Radon Gas Test Kit, RD1

4.3 out of 5 stars 9,837 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
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Purchase options and add-ons

Brand First Alert
Style Radon Gas Test Kit
Power Source Gas Powered
Product Dimensions 8.38"D x 8.38"W x 6.65"H
Alarm Visual
Sensor Type Ensure The Product Is Not Overloaded And Is Stable When In Use. Store The Product In A Suitable Location To Protect It From The Elements When Not In Use. See more
Global Trade Identification Number 00029054850003
Number of Items 1
Manufacturer First Alert
UPC 029054850003

About this item

  • The simple and safe way to test for radon
  • Listed under the EPA radon gas measurement proficiency program
  • Includes test materials and lab fees, excluding NJ state fees
  • Results are emailed within 72 hours of lab receipt
  • Recommended for use only within the United States

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Product information

Technical Details

Brand ‎First Alert
Style ‎Radon Gas Test Kit
Power Source ‎Gas Powered
Product Dimensions ‎8.38"D x 8.38"W x 6.65"H
Alarm ‎Visual
Sensor Type ‎Ensure The Product Is Not Overloaded And Is Stable When In Use. Store The Product In A Suitable Location To Protect It From The Elements When Not In Use.
Global Trade Identification Number ‎00029054850003
Number of Items ‎1
Manufacturer ‎First Alert
UPC ‎029054850003
Part Number ‎RD1
Item Weight ‎3.2 ounces
Country of Origin ‎USA
Item model number ‎RD1
Is Discontinued By Manufacturer ‎No
Size ‎Test Kit
Item Package Quantity ‎1
Number Of Pieces ‎1
Included Components ‎First Alert RD1 Radon Gas Test Kit
Batteries Included? ‎No
Batteries Required? ‎No
Warranty Description ‎As Labeled

Additional Information

ASIN B00002N83E
Customer Reviews
4.3 out of 5 stars 9,837 ratings

4.3 out of 5 stars
Date First Available June 27, 2007

Warranty & Support

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Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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From the manufacturer

radon test

image
At a Glance:
  • Easy and safe way to test for the presence of radon gas
  • Listed under the EPA Radon Gas Measurement Proficiency Program
  • Includes test materials and lab fees, excluding NJ state fees
  • Results are available 3-5 business days after lab receipt

First Alert RD1 Radon Gas Test Kit

Alerts You to Hidden Danger

The First Alert RD1 Radon Gas Test Kit easily and safely allows you to check your home, work, or other spaces for dangerous radon gas. Radon is a colorless, odorless gas that is the leading cause of lung cancer in non-smokers. This radon testing kit is an easy and inexpensive way to determine if radon is present and is ideal for disaster preparedness. It is recommended for use only within the United States.

What's in the box:

  • First Alert RDI Radon Gas Test Kit
  • Instruction manual
image

The Easy Way to Check for Radon

The First Alert RD1 Radon Gas Test Kit includes everything you need to check your home, business, or school for radon. Radon is a naturally occurring gas that can be found in basements, drains, crawl spaces, and other areas below ground. The EPA recommends testing for radon below the third floor of buildings. The charcoal-based radon test kit is listed under the EPA Radon Gas Measurement Proficiency Program.

back of packaging
Simple Test Takes Just Minutes

Testing for radon should only take a few minutes, and is safe and easy. Simply leave the radon sampler out in the lowest level of the home or office for two to four days. When finished, place the test in the provided envelope, apply postage, and mail it to the lab. Lab results are available 3-5 business days after lab receipt.

Includes Next Steps and Recommendations

The radon testing kit includes information on what to do if you do have a radon problem and how to interpret the results of your test. More comprehensive testing might be required if results indicate the presence of radon. The kit also includes background information on the dangers of radon and how it might be entering your building.

First Alert Logo

About First Alert

For nearly 60 years, First Alert has been a leading innovator in the home safety industry, helping its customers protect what matters most. From smoke detectors and carbon monoxide alarms to security cameras and safes, the company manufactures reliable, technologically advanced products that offer a sense of preparedness and peace of mind. First Alert also takes pride in community outreach and has maintained a longstanding commitment to fire service support and safety awareness.

Product Description

The First Alert RD1 Radon Gas Test Kit detects dangerous radon gas in your home, work, or institution. Radon is a naturally occurring gas that can cause lung cancer, and can be found in basements, drains, crawl spaces, and other areas below ground. Simple, safe, and easy to use, this radon testing kit includes everything you need for an initial screening, including lab fees (except NJ state tests). The test is listed with the EPA and takes two to four days to complete in your home. Results are available 3-5 business days after lab receipt. The radon testing kit also includes recommendations and next steps if the results are positive for radon, and is ideal for disaster preparedness. It is recommended for use only within the United States.

Product guides and documents

Top Brand: First Alert

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100K+ customers rate items from this brand highly
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First Alert Radon Gas Test Kit, RD1
First Alert Radon Gas Test Kit, RD1
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Price$16.28$25.95-22% $72.99
Typical:$92.99
$32.99-20% $79.99
List:$99.99
$24.94
Delivery
Get it as soon as Saturday, Jul 19
Get it as soon as Saturday, Jul 19
Get it Jul 18 - 22
Get it as soon as Sunday, Jul 20
Get it as soon as Saturday, Jul 19
Get it as soon as Saturday, Jul 19
Customer Ratings
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Customer reviews

4.3 out of 5 stars
9,837 global ratings

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Customers say

Customers find the radon test kit easy to follow and reliable, with quick results via email within a few days. They appreciate that the price is included with purchase and consider it worth the cost. The test detects radon levels within safe limits, and customers value the peace of mind it provides. While the accuracy is generally positive, some customers express concerns about the test's reliability.

827 customers mention "Ease of use"785 positive42 negative

Customers find the radon gas test kit easy to use, with clear instructions and straightforward results that are simple to understand.

"Easy to use as long as you can keep the monitored area closed (windows & doors) for at least 12+ hours before and 48 hours during the test...." Read more

"Quick and easy to use with no extra hidden fees (other than shipping it in to the lab)." Read more

"...It's quick and easy. The test requires a minimum of 48 hours of exposure. I packed it up, and took to the post office to mail...." Read more

"Easy and affordable with thorough results, can’t beat that!" Read more

616 customers mention "Functionality"503 positive113 negative

Customers find that the radon gas test kit works well and provides reliable results.

"Great product" Read more

"...Simply looking at the results on email was just great. Good product highly recommend it at the right price." Read more

"Worked well. Detected high levels of radon. Easy to mail back ." Read more

"Worked great. Sent the kit in and then looked up the results online. I loved how easy it was...." Read more

459 customers mention "Value for money"350 positive109 negative

Customers find the radon gas test kit well worth the reasonable cost, noting that the test price is included with purchase and there are no hidden fees.

"...to set us back but I was pleasantly surprised that this was so inexpensive...." Read more

"...Good price and good service and gives peace of mind of knowing what the status of your exposure actually is...." Read more

"Great price and does the job...." Read more

"Apparently you have to pay more money to send this in to be read. Waste of money." Read more

379 customers mention "Results fast"359 positive20 negative

Customers appreciate how quickly the radon gas test kit provides results, with fast email notifications and turnaround times of a few days.

"Easy to use, fast results. Worth knowing for peace of mind." Read more

"Easy to use and quick results! We spend a moderate amount of time in the basement but wanted to be sure we weren’t exposing the baby to radon...." Read more

"Quick and easy to use with no extra hidden fees (other than shipping it in to the lab)." Read more

"Fast, Easy and Cost Effective!" Read more

146 customers mention "Radon level"120 positive26 negative

Customers are satisfied with the radon test kit's performance, reporting that it provides accurate results within safe limits and can be used as a follow-up check.

"Excellent Radon Test Kit. Testing is pre-paid. The only additional cost is 4 first class stamps for shipping...." Read more

"...Good to know your Radon levels so to protect you and your familys health." Read more

"No radon— that’s what I am taking about!" Read more

"Complete Kit for Radon test. Price includes the test package and the lab test." Read more

128 customers mention "Accuracy"106 positive22 negative

Customers find the radon gas test kit accurate, with multiple customers confirming the test results, and one customer noting that the lab results matched the sensor readings very closely.

"...Easy to use and accurate." Read more

"Accurate (double checked the realtor's electronic gauge) and an inexpensive way to keep an eye on radon levels...." Read more

"Easy to use and had accurate results as compared to commercial testing company after radon mitigation was installed in our house." Read more

"...Bottomline: test is inexpensive, easy, reliable and I give thumbs up." Read more

62 customers mention "Peace of mind"62 positive0 negative

Customers find the radon gas test kit provides peace of mind, offering meaningful information and settling their curiosity, with one customer noting quick results.

"Peace of mind..." Read more

"Peace of Mind..." Read more

"...Worth it for peace of mind." Read more

"...Results were timely and informative...." Read more

83 customers mention "Test accuracy"48 positive35 negative

Customers have mixed opinions about the accuracy of the radon gas test kit, with some finding the results clear and easy to read, while others consider the test results unreliable.

"...Test results were thorough and clear...." Read more

"...downside is you need to read and double check the directions, it isn't idiot proof and it would be pretty easy to make a mistake if you are in a rush..." Read more

"...Then the results are emailed to you as a PDF that is easy to read and explains everything...." Read more

"This is NOT a home test that you can read the results yourself. It needs to be shipped back to the company for lab results...." Read more

Great test!
5 out of 5 stars
Great test!
Loved using this test, it was my second time. Very easy to use. Just follow directions!
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Top reviews from the United States

  • Reviewed in the United States on January 21, 2013
    Chances are if you are reading reviews for a carbon-based Radon test kit, you already have a general idea of how they work and what they test for. This test kit comes in a small box, it contains a sealed tray of a charcoal-like substance that you sit in the spot where you want to run the test for 48-72 hours. After that time, you put the kit back into the included envelope along with a completed information card, seal it up, and mail it away for testing to a lab. Simple enough.

    To sum it all up, I was very satisfied with this product from start to finish. Here is my review, focusing on a few key areas that I feel need to be addressed based on reading the product information and other customer reviews:

    Ease of Use:
    I found this kit to be as simple to use as it could possibly have been. The only contents of the box are exactly what is necessary. The instructions are short, but thorough enough that they provide you with everything needed to maximize your chances of a successful and accurate test. It goes over the basics of how to use the kit, recommended places to place it, conditions your house needs to be in, etc. Once you've run it for 48-72 hours, you just record the necessary information on the info card, drop it in the envelope, and off it goes to the lab.

    Hidden/Additional Fees:
    The price of this kit includes the lab analysis and results reporting, so there are no "hidden" fees. However, the kit gives you the option to pay an additional $10 for "rush processing". I did not opt for this, so I can't comment on how much faster the results would have been, but I assume this would be useful for things like real estate transactions. This test was only for my own information in a house I already own, so speed of results wasn't a top priority for me. The only other potential "hidden" fee is the cost of postage to return the kit. The return envelope states that you must attached 5 first-class postage stamps. So that's a little over $2 of postage required to send the kit in for testing. Not going to break the bank, but I felt it was worth mentioning.

    Speed of Receiving Results:
    This is the main area I wanted to focus my review on. There are many other reviews that are complaining about how they sent away their kit and never heard back again, or had a very difficult time interfacing with the lab to get their final results. Like I mentioned above, I sent my kit back without opting for the rush processing service. My test finished on Sunday, January 13th. It was sealed in an envelope and dropped in the mail on the morning of Monday, January 14th. Standard first-class mail. I received my results back in the form of an email with a PDF attachment today, Monday January 21st. Seven days total for results, including the time it spent going from Maryland to Texas in the mail! I couldn't believe it when I received the email. Many others complained of it taking 2-4 weeks to get results, or never hearing back at all. I can only speak for my one experience, but I was extremely satisfied with the speed.

    Accuracy of Results:
    I chose to use this carbon-based test kit as a supplement to another kit I had purchased, the Safety Siren Pro Series HS71512 3 Radon Gas Detector. The Safety Siren Pro kit is significantly more expensive, but gives a short term (2 day average) reading as well as a long term (7 day average) reading. I placed both a few feet apart when I ran the test. My Safety Siren digital reader showed a result of .8 pci average over a 7 day test, and the results I received back from this First Alert test kit had a reading of .7 pci. This is extremely close, and made me feel confident that both kits are likely to be accurate.

    All in all, I rate this product a full five stars based on my experience, and I would have no issue recommending this kit to anyone else looking for a short term radon reading. Follow the simple directions, and you'll be satisfied.
    1,894 people found this helpful
    Report
  • Reviewed in the United States on July 10, 2025
    Why did you pick this product vs others?:
    First alert brand. 
    Very easy to use and online registration is easy as well. Quick results. Yes. You have to pay shipping back , but still a cheap way to test for radon. Highly recommend.  
    One person found this helpful
    Report
  • Reviewed in the United States on June 24, 2025
    I purchased the gas test kit for pace of mind after learning about the risks of radon in older homes. The instructions were clear and easy to follow- just set the kit in the designated room, leave it undisturbed for the recommended time, and then mail it to the lab using the prepaid envelope.
    One person found this helpful
    Report
  • Reviewed in the United States on May 1, 2025
    Quick and easy to use with no extra hidden fees (other than shipping it in to the lab).
    One person found this helpful
    Report
  • Reviewed in the United States on July 8, 2025
    We used this radon testing kit twice. The first time we used it was in March. The instructions were easy to understand and the product could be registered online. When the testing time concluded, it was mailed to the company. We received results in just a few weeks. We ran another test a few weeks later to confirm that the results were accurate. The radon readings were both high, but around the same number. We have since installed a radon mitigation system
  • Reviewed in the United States on August 31, 2024
    I wanted to retest one house and test another so I bought two. Good instructions (very easy) and the cost of processing the test is included. The test comes with a return envelope that is sent back via FedEx. I don’t recall what I paid but it wasn’t a lot. If you are a computer user like me DO NOT fill in by hand the sheet that comes with the test. Go right to the website and fill in your info there. Make sure to write down the start time if you are liable (like me) to think you will remember when you really won’t. Later, you will include the finish time. When you’re done, you send it in, and several days later get a text message that your results are ready and an email with all the info in it - your score, and what (if anything) to do about it. My tests all came back with low numbers so no need to do anything but test again in a few years. PEACE OF MIND.
    24 people found this helpful
    Report
  • Reviewed in the United States on July 6, 2025
    Units that give continuous reporting and history serve me better.    Their customer service is helpful.
  • Reviewed in the United States on July 7, 2025
    Easy to use as long as you can keep the monitored area closed (windows & doors) for at least 12+ hours before and 48 hours during the test. Note that this product's shipping envelope for sending it back to the lab is not prepaid. Factor in that cost when comparing other test kits.
    One person found this helpful
    Report

Top reviews from other countries

  • Josh
    1.0 out of 5 stars Not for the UK!
    Reviewed in the United Kingdom on February 15, 2014
    You are buying a charcoal kit, return envelope, and lab analysis of the charcoal. Unfortunately the envelope and lab forms in this kit are only for a Texas lab. Shouldn't be for sale outside the USA as posting it by air mail etc is not included in the price and will most likely ruin the test results anyway.
    2 people found this helpful
    Report
  • noah
    1.0 out of 5 stars This should not be sold outside of the US
    Reviewed in Australia on July 4, 2024
    It needs you send this back for lab analysis, which doesn’t work outside of US
  • m&emmom
    4.0 out of 5 stars Expensive if you’re Canadian
    Reviewed in Canada on November 6, 2024
    The product was very easy to use and I’m waiting for my results. It cost an additional $15 American to get my results in Canada by email. I could not get FedEx, DHL, or UPS to ship it because the address did not register in their system. To get Canada post to ship it within the seven day time limit that you have cost me $33 so just be aware of the additional cost.
  • Lvig
    1.0 out of 5 stars More $ to pay
    Reviewed in Canada on July 7, 2025
    If using in Canada, expect to pay another fee for processing
  • willard h.
    3.0 out of 5 stars Have to send to States for results!
    Reviewed in Canada on October 6, 2024
    A radon test. Had no idea i would have to send to Texas for a test result. $37. 00 extra dollars.