






🕵️♂️ Detect radon before it detects you—because safety is the new luxury.
The First Alert RD1 Radon Gas Test Kit offers a quick, EPA-certified method to detect harmful radon gas in your home or workplace. Designed for ease and accuracy, it includes all necessary materials and lab fees (excluding NJ), with results conveniently emailed within 3-5 days after lab receipt. Ideal for proactive homeowners and professionals seeking reliable indoor air quality insights.





| ASIN | B00002N83E |
| Alarm | Visual |
| Batteries Included? | No |
| Batteries Required? | No |
| Brand | First Alert |
| Customer Reviews | 4.3 4.3 out of 5 stars (10,051) |
| Date First Available | June 27, 2007 |
| Global Trade Identification Number | 00029054850003 |
| Included Components | First Alert RD1 Radon Gas Test Kit |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 3.2 ounces |
| Item model number | RD1 |
| Manufacturer | First Alert |
| Number Of Pieces | 1 |
| Number of Items | 1 |
| Operating Humidity | 10-95% RH |
| Part Number | RD1 |
| Power Source | Gas Powered |
| Product Dimensions | 8.38"D x 8.38"W x 6.65"H |
| 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. |
| Size | Test Kit |
| Style | Radon Gas Test Kit |
| UPC | 029054850003 |
| Warranty Description | As Labeled |
D**S
Very satisfied with this product
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.
R**Y
Reliable and Essential Kit for Homeowners
As a homeowner, testing for radon is essential for peace of mind, and this kit was a fantastic option. It worked well and provided clear instructions, making the whole process straightforward and easy to follow. Setting up the canisters was simple, and the instructions for mailing them back were clear. This kit is a reliable and necessary tool for anyone purchasing a new home or wanting to monitor the levels in their current residence. Highly recommended!
A**N
Easy to use.
Easy to use. I think it was accurate.
J**N
Worth the purchase for health safety
My aunt was diagnosed with Small Cell Carcinoma cancer which is a very aggressive cancer mostly commonly caused by smoking. Since my aunt has never smoked a day in her life and has had limited exposure to second hand smoke, her doctor said it can also be caused by asbestos or radon exposure. I figured it’d be a good idea to be proactive and test the radon levels in my Michigan home’s basement. Thankfully after following the easy directions of this radon test kit, then mailing in my results, the results came back with next to no traces of radon gas detected which has helped bring some peace of mind.
T**C
Worked out well. Seemed accurate
Bought one in the spring and then ran our abatement fan all summer. Then bought another test in the fall for comparison. Both seemed accurate and reliable.
J**I
Quick results, easy to set up
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
S**Y
Beware of final cost after shipping
Easy to use, but beware, using it will cost another $12.50. I didn't use the label you could buy when registering the kit, instead sending it 1st class mail. Allegedly, it took more than 10 days to get there. As a result, the results had a very large margin of error.
M**B
Good quality test
The instructions were clear and thorough. The test we did was accurate and we did receive results right away. It gave us a peace of mind. The shipping took a bit to get to the lab so I was concerned with timing on the results. I was a bit disappointed that we also had to pay for shipping which the cheapest option was $12. I wanted a one stop shop rather than pay for the kit and for shipping. The results were clear and detailed. They gave next steps in the event radon was detected. They explained the numbers and data and its nice to include for buyers if you’re selling your house
J**H
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.
N**H
It needs you send this back for lab analysis, which doesn’t work outside of US
S**M
So basically, you pay $35 for a little plastic container with some charcoal in it. I thought this would be the whole test, but no. You need to pay $15 separately for the lab test. You need to pay to mail it to their address and get it to them within 7 days. It is unclear to me what exactly is being included in the original price.
M**M
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.
W**.
A radon test. Had no idea i would have to send to Texas for a test result. $37. 00 extra dollars.