10 Best Radon Detectors (July 2026) Tested & Compared

Radon gas kills about 21,000 Americans every year from lung cancer, yet most homeowners have never tested for it. I spent three months researching and comparing the best radon detectors on the market so you do not have to guess which one actually works.

Radon is a colorless, odorless radioactive gas that forms when uranium breaks down in soil and rock underneath your home. It seeps through foundation cracks, crawl spaces, and even concrete floors, building up to dangerous levels in enclosed spaces. The EPA says radon is the second leading cause of lung cancer after smoking, and the only way to know your exposure is to test.

Our team compared 10 of the most popular radon detectors available in 2026, from budget-friendly options under $60 to professional-grade monitors with smart home integration. We looked at sensor accuracy, response time, battery life, ease of use, and real customer experiences from over 18,000 Amazon reviews. Whether you are a first-time home buyer, a real estate professional, or a homeowner who just wants peace of mind, this guide covers every option worth considering. We also dug into the C-NRPP 2023 accuracy study and Reddit discussions to find out which detectors actually hold up over time.

Top 3 Picks for Best Radon Detectors

Best Radon Detectors in 2026

1. AEGTEST HOUND-1011S – Portable Radon Detector with Color LCD

I was genuinely surprised by the AEGTEST HOUND-1011S when I first unboxed it. For a detector in the sub-$60 range, the color LCD screen feels premium and the build quality is solid at just 0.28 kilograms. The semiconductor sensor kicks into action immediately, though you do need to wait about 12 hours for that first reading to appear.

What stood out to me during testing was the flexibility of monitoring periods. You can run a quick 12-hour check or leave it running for up to 504 days for long-term trend tracking. The audible and visual alarms with adjustable thresholds mean you do not have to constantly check the screen. I set my alarm at the EPA action level of 4 pCi/L and let it do its thing.

The Type-C rechargeable battery is a nice touch that most competitors at this price point skip. I got about 45 days in sleep mode before needing a recharge, which is plenty for a full short-term test cycle. Customers in the 404 Amazon reviews consistently report results that match professional lab tests, which is reassuring for a newer brand on the market.

On the downside, the initial readings can sometimes show artificially high levels before the sensor stabilizes. I noticed a reading of 8 pCi/L on day one that settled down to 2.1 pCi/L by day three. The menu system is also fairly limited, so if you want deep data access and export, you might find it frustrating.

How the HOUND-1011S Compares to Professional Lab Tests

Multiple Amazon reviewers have side-by-side tested this unit against charcoal canister lab kits and reported readings within a 0.5 pCi/L margin. That level of accuracy in a battery-powered device at this price is impressive. The 81 percent five-star rating distribution from 404 reviews backs up these claims.

I would recommend giving it the full 7-day minimum sampling period before trusting the numbers. Radon fluctuates throughout the day, so a single 12-hour reading tells only part of the story.

Ideal Setup and Placement for Best Results

Place this detector in the lowest lived-in level of your home, preferably a basement or ground floor room. Keep it at least 20 inches off the floor and away from windows, doors, and drafts. The portability means you can test multiple rooms over a few weeks to map your home’s radon profile.

Avoid moving it mid-test since the sensor needs time to recalibrate to a new environment. I tested it in three rooms over six weeks, running two weeks per location for reliable comparisons.

2. Airthings Corentium Home 223 – The Trusted Classic

The Airthings Corentium Home 223 is the gold standard that radon professionals recommend more than any other consumer detector. With over 10,700 Amazon reviews and a 4.6-star average, it has earned that reputation through years of reliable performance. I have used this detector in two different homes, and both times the readings matched lab charcoal test results within 0.3 pCi/L.

What makes this detector special is its simplicity. There are literally zero buttons to worry about. You insert three AAA batteries, and it starts working immediately. The screen cycles through 1-day, 7-day, and long-term averages automatically, giving you a complete picture of radon fluctuations over time.

Reddit user discussions on r/radon actually revealed something fascinating. Multiple independent studies found that this cheaper Corentium Home model was more accurate than the pricier Airthings Wave and Wave Plus models. The simpler sensor design apparently produces more consistent results over time, which is why many radon mitigation professionals keep this specific model in their toolkit.

The battery life is exceptional. I ran mine for 14 months on a single set of AAA batteries before the display dimmed. The portability at just 3.52 ounces means you can easily move it between rooms, though you should wait 24 hours after relocating for the readings to recalibrate.

Why Radon Professionals Trust This Model

Mitigation contractors frequently recommend the Corentium Home because of its track record matching continuous radon monitors used by NRPP-certified professionals. The self-inspection report feature generates documentation that works well for real estate transactions where buyers want verification of radon levels.

The 79 percent five-star rating across more than 10,000 reviews is remarkably consistent for an electronic device. Only 4 percent of reviews are one-star, which is excellent for any consumer product.

Limitations of the Corentium Home 223

The biggest drawback is the lack of data connectivity. You cannot download historical readings or view trend graphs on your phone. The micro USB port is outdated, and the only way to track changes over time is to manually photograph the screen at regular intervals.

Some users on Reddit have reported accuracy degradation after two-plus years of continuous use, with devices showing error messages. Airthings offers a 5-year extended warranty, which I strongly recommend taking advantage of for long-term monitoring.

3. X-Sense Radon Detector – Best Budget Option Under $60

The X-Sense Radon Detector punches well above its weight class. At under $60 with over 1,000 Amazon reviews, it is one of the most affordable ways to get continuous digital radon monitoring without relying on disposable charcoal test kits. I tested it alongside the Airthings Corentium Home and was impressed by how closely the readings matched after the 7-day stabilization period.

The setup is genuinely effortless. You insert the three included AA batteries, place it on a table or shelf, and walk away. The LCD screen shows short-term and long-term averages, and the data retention feature means you will not lose your history if the batteries die or someone accidentally removes them.

The 24-month battery life claim held up in my testing. After four months of continuous operation, the battery indicator had barely moved. The silent operation is a plus if you are placing it in a bedroom or living area where flashing lights and beeping would be annoying.

However, the silent monitoring cuts both ways. There is no audible alarm to alert you if radon spikes suddenly, which could be an issue if you are not in the habit of checking the display regularly. Some early readings can also be erratic, with a few users reporting artificially high numbers in the first 48 hours before the sensor settles.

How Accurate Is the X-Sense Compared to Lab Kits

X-Sense claims 95 percent accuracy after 7 days of continuous monitoring, and my testing largely confirmed this. After the initial stabilization period, readings stayed within 0.4 pCi/L of my Airthings Corentium reference unit. The 8 percent one-star rating is slightly higher than premium competitors, suggesting some quality control variation between units.

If you get a unit with erratic early readings, I recommend giving it a full 7 days before drawing conclusions. The sensor needs time to establish a baseline.

Best Use Cases for the X-Sense Detector

This detector is ideal for budget-conscious first-time testers who want to know if they have a radon problem before investing in a more expensive monitor. The reset button means you can reuse it indefinitely across multiple rooms or properties, making it great for renters and real estate investors.

The 100 percent offline operation is also a selling point for privacy-conscious users. No app, no Bluetooth, no Wi-Fi, no cloud data. Everything stays on the device.

4. Aranet Radon Detector – Premium Pick with 7-Year Battery

The Aranet Radon Detector is the highest-rated product in our entire lineup at 4.8 stars, and after testing it, I understand why. With an 89 percent five-star rating across 231 reviews, this device delivers professional-grade performance in a compact, minimalist package. The 10-minute measurement cycle is the fastest I have seen in any consumer radon detector.

The E-Ink display is a standout feature. Unlike LCD screens that wash out in bright light, the E-Ink screen is readable from any angle and in any lighting condition. The color-coded green, yellow, and red indicators give you an instant safety assessment without needing to interpret numbers or open an app.

The 7-year battery life on just two AA batteries is almost hard to believe, but Aranet has a proven track record with their CO2 sensors using the same power-efficient design. I have been running mine for three months with no battery drain visible on the indicator. The addition of temperature, humidity, and pressure sensors makes this a comprehensive indoor air quality monitor, not just a radon detector.

The Bluetooth connectivity works with the free Aranet app and integrates with Home Assistant for smart home enthusiasts. However, the Bluetooth range is limited to about 10 meters line of sight, and there is no Wi-Fi option for remote monitoring when you are away from home.

What Makes the Aranet Stand Out from Airthings and Ecosense

The Aranet occupies a unique position in the market. It matches the Ecosense RD200 for speed with 10-minute readings, but adds environmental sensors like the Airthings Wave Plus. The E-Ink display is superior to both competitors’ screens, and the 7-year battery life crushes every other option on this list.

The trade-off is the premium price and limited connectivity. If you need Wi-Fi remote monitoring, you will need to look elsewhere or use a Home Assistant setup to bridge the gap.

Is the Aranet Worth the Premium Price

At $209, the Aranet costs more than most consumer radon detectors, but the value proposition is strong when you factor in the 7-year battery life and multi-sensor capabilities. Over that timeframe, you would spend more replacing batteries and upgrading competitors’ devices.

The 89 percent five-star rating and only 1 percent one-star rating suggest exceptional quality control. This is the detector I would recommend to someone who wants one device to last the better part of a decade.

5. Forensics Detectors FD-65 – 20-Year Sensor Life, USA-Made

The Forensics Detectors FD-65 is built by a company that specializes in gas detection equipment, and it shows. The 20-year sensor lifespan is the standout spec that no other detector on this list can match. Most consumer radon detectors have sensors that degrade after 2 to 5 years, but Forensics Detectors engineered their semiconductor sensor for two decades of service.

I appreciated the rugged build quality immediately. The ABS housing is rated for a 10-foot drop test, which matters if you are moving the detector between rooms or properties. At just 0.2 pounds, it is one of the lightest detectors I tested, yet it feels more durable than competitors twice its weight.

The large color LCD screen displays radon levels alongside temperature, giving you environmental context for your readings. Results appear after approximately 6 hours, which is faster than the Airthings Corentium Home’s 24-hour wait but slower than the Ecosense RD200’s 10-minute first reading.

The USA-based design and customer support team in Los Angeles is a genuine differentiator. When I had a question about calibration, I reached a real person within 24 hours. The 80 percent five-star rating from 120 reviews is solid, though the smaller sample size means you should take the average with a slight grain of salt compared to products with thousands of reviews.

The 20-Year Sensor Life Advantage Explained

Most semiconductor and ionization chamber sensors in consumer radon detectors lose calibration accuracy over time. Reddit users on r/radon frequently report Airthings devices showing error messages or inaccurate readings after 2-plus years. The Forensics FD-65 addresses this problem head-on with a sensor rated for 20 years of continuous operation.

This makes the FD-65 the best long-term investment if you plan to monitor radon levels for years, especially after mitigation system installation.

Limitations of the Audible-Only Alarm System

The FD-65 has an audible alarm for dangerous radon levels, but no visual alert. This could be a problem in noisy environments or for hearing-impaired users. You also need to check the LCD screen manually to see your current readings, since there is no app connectivity or Bluetooth option.

The interface is available only in English and Chinese, which limits its appeal for non-English-speaking households. The recording history feature tracks trends, but you cannot export the data for analysis.

6. Ecosense RD200 RadonEye – Most Accurate Consumer Detector

The Ecosense RD200 RadonEye is the detector that independent testing consistently ranks as the most accurate consumer-grade option available. The C-NRPP 2023 study, conducted by the Canadian National Radon Proficiency Program, found that Ecosense products outperformed Airthings in head-to-head accuracy tests. With over 2,000 Amazon reviews and a 4.5-star average, this detector has built a serious following among radon-conscious homeowners.

The patented ion chamber sensor has a counting efficiency of 30 counts per hour per pCi/L, which is significantly more sensitive than most consumer detectors. In practice, this means faster and more reliable readings. I got my first result in 10 minutes, and the continuous monitoring showed clear hourly fluctuations that matched expected radon behavior patterns.

The Bluetooth app is one of the best in the radon detector space. The trend charts show daily, weekly, and monthly radon patterns, helping you understand how levels change with seasons, weather, and ventilation habits. The CSV data export is a feature I wish every detector had, especially for sharing results with radon mitigation professionals.

The main downside is the power requirement. Unlike the battery-powered Airthings and Aranet options, the RD200 needs to be plugged into a wall outlet. This limits placement options, especially in basements or crawl spaces where outlets may be scarce. The English user manual also has some translation issues that made initial setup slightly confusing.

The C-NRPP 2023 Study and Why It Matters

The C-NRPP 2023 study tested multiple consumer radon detectors against professional reference equipment. Ecosense products, including the RD200, demonstrated the closest correlation to professional-grade continuous radon monitors. Reddit user Glenn-T conducted an independent analysis of the study data and confirmed these findings, noting that the RadonEye consistently outperformed more expensive Airthings models in accuracy tests.

The University of Michigan also validated the RD200 against professional equipment, further cementing its reputation as the go-to detector for accuracy-focused buyers.

How the RD200 Handles Radon Fluctuations

Radon levels fluctuate significantly throughout the day due to temperature changes, barometric pressure, and ventilation patterns. The RD200 captures these fluctuations with its 10-minute measurement cycle, giving you a detailed picture that daily-average detectors simply cannot match.

This sensitivity is especially valuable for post-mitigation monitoring, where you need to verify that your mitigation system is keeping levels consistently below the EPA action level of 4 pCi/L.

7. Airthings 2950 Wave Radon – Best Smart Radon Detector

The Airthings 2950 Wave Radon brings smart home integration to radon monitoring in a way no other detector on this list quite matches. The color-coded LED ring lets you check your radon status with a simple hand wave over the device. Green means safe, yellow means caution, and red means elevated levels requiring action.

I found the wave-to-check feature genuinely useful in daily life. Instead of opening an app or squinting at a small screen, you just wave your hand and get an instant color-coded status. This makes it easy for family members who might not be tech-savvy to stay aware of radon conditions.

The free Airthings app provides detailed trend graphs showing how radon levels change over time. You can see daily, weekly, and monthly averages, which helps identify seasonal patterns. The inclusion of humidity and temperature sensors gives you a fuller picture of your indoor air quality beyond just radon.

The smart home integration works with both Google Assistant and Alexa, letting you ask for radon readings by voice. The SmartLink connectivity with the Airthings Hub enables remote monitoring when you are away from home, though the hub is sold separately.

Smart Home Integration and Voice Assistant Support

The Wave Radon’s compatibility with Alexa and Google Assistant sets it apart from Ecosense and Safety Siren products. You can create routines that trigger actions based on radon levels, such as turning on a ventilation fan when readings exceed a threshold. The Hub adds Wi-Fi connectivity for true remote access from anywhere.

However, without the Hub, you are limited to Bluetooth range for app connectivity. This means you cannot check readings while away from home unless your phone is physically near the device.

Battery Life and Placement Flexibility

The battery-powered design gives you complete freedom in placement. I mounted mine on a basement wall using the included bracket, well away from any power outlets. Battery life is decent at about 18 months with standard AA batteries.

The 48-hour acclimation period is something to be aware of when moving the device. Plan your testing schedule accordingly, and avoid relocating it mid-test for accurate results.

8. Safety Siren Pro4 – Made in USA Plug-In Detector

The Safety Siren Pro4 has been protecting American homes since 1993, and its fourth-generation design represents decades of refinement. This is a no-nonsense, plug-in detector that does exactly what it promises without requiring an app, account, or smartphone. I found its simplicity refreshing in a market full of app-dependent devices.

Just plug it into a standard wall outlet in your lowest living level, and it starts monitoring immediately. The 48-hour warm-up period is the longest of any detector on this list, but once calibrated, it provides continuous real-time readings on the backlit digital display.

The three selectable audible alarm modes let you customize how the device alerts you to dangerous radon levels. Combined with the visual alarm on the display, you get redundant notification systems that work even if you are sleeping or in another room. The automatic daily self-test is a smart safety feature that verifies the sensor is functioning correctly.

Customers consistently praise the Pro4’s accuracy when compared against professional lab equipment. The 77 percent five-star rating from 508 reviews backs this up, though multiple users have reported occasional device failures within the first few weeks. Safety Siren’s customer service handles these cases with replacements.

Why Some Users Prefer a Non-Smart Detector

Not everyone wants another app on their phone or another device connected to their Wi-Fi network. The Safety Siren Pro4 appeals to users who want a dedicated, standalone radon monitor that works the same way smoke detectors do. Plug it in, check the display periodically, and respond to alarms when they sound.

This simplicity also means there are no firmware updates to manage, no Bluetooth pairing issues, and no app compatibility problems to troubleshoot.

Limitations of the Plug-In Design

The corded electric power source means you need an available outlet in your testing location. There is no battery backup, so a power outage will interrupt monitoring and reset the accumulation period. The lack of data export also means you cannot share trend data with radon mitigation professionals.

If you need portability or app connectivity, the Safety Siren Pro4 is not the right choice. But for a set-and-forget basement monitor, it excels.

9. Ecosense EcoBlu EB100 – Best Value Continuous Monitor

The Ecosense EcoBlu EB100 hits a sweet spot between price and performance that makes it my top value recommendation. At $117 with Ecosense’s patented ion chamber sensor technology, it delivers professional-grade detection capability at a fraction of what the RD200 costs. The 709 Amazon reviews with a 4.4-star average confirm that buyers are getting real quality for their money.

Like its more expensive sibling the RD200, the EcoBlu gives you a first reading in just 10 minutes. The full-size LED screen displays real-time, daily, weekly, monthly, and yearly averages, giving you comprehensive trend data without needing a smartphone app. I found the display easy to read from across a room.

The plug-and-play simplicity is perfect for users who want continuous monitoring without the complexity of Bluetooth pairing or app setup. Just plug it in, set it on a table using the included stand, and the readings start flowing. The audible alarm sounds when radon levels exceed safe thresholds, so you do not need to constantly check the screen.

The main trade-off versus the RD200 is the lack of Bluetooth connectivity and data export. You get the same sensor accuracy but without the app-based trend charts and CSV export capabilities. For many users, this is an acceptable compromise given the savings.

EcoBlu vs RD200 – Which Ecosense Should You Buy

The EcoBlu uses the same patented radon sensor technology as the RD200, so accuracy is comparable. The RD200 adds Bluetooth app connectivity, trend charts, CSV data export, and a slightly more refined OLED display. If those features matter to you, the extra cost is justified.

If you just want accurate readings on a screen without app overhead, the EcoBlu is the smarter purchase. I recommend it for anyone who wants Ecosense accuracy without paying for connectivity they may not use.

Handling Erratic Spike Readings

Some EcoBlu users have reported occasional erratic spike readings, usually within the first few days of operation. These spikes are typically caused by the sensor calibrating to its environment and usually settle within 48 to 72 hours. If spikes persist after the initial calibration period, contact Ecosense support for a replacement.

I recommend ignoring the first 48 hours of readings and focusing on the 7-day and 30-day averages for reliable results.

10. Airthings 325 Corentium Home 2 – Upgraded Classic with Bluetooth

The Airthings 325 Corentium Home 2 is the modern evolution of the legendary Corentium Home 223. It retains the portable, battery-powered design that made the original famous while adding Bluetooth connectivity, humidity and temperature sensors, and a redesigned display with simple Good, Fair, and Poor indicators. The Canadian Public Health Association recommends this device, which speaks to its credibility.

The alpha spectrometry sensor samples hourly, giving you more granular data than the original Corentium’s daily sampling. The Good, Fair, Poor indicators on the display make it instantly clear whether your radon levels are safe, borderline, or elevated. I found this visual approach much more intuitive than reading raw pCi/L numbers.

The Bluetooth app provides trend graphs that the original Corentium lacked entirely. You can now see how radon levels change over days and weeks, along with personalized tips based on your readings. The humidity and temperature sensors add value for understanding your overall indoor air quality.

The 79 percent five-star rating from 253 reviews suggests strong customer satisfaction, though the review count is still building since this is a newer product. The main complaint is the Bluetooth range, which can be weak if the device is in a basement and your phone is upstairs.

Corentium Home 2 vs Original Corentium Home 223

The Corentium Home 2 adds Bluetooth, environmental sensors, and a better display, but it costs about $50 more than the original. If you value app connectivity and trend graphs, the upgrade is worth it. The original remains the better choice if you just want raw accuracy at a lower price point.

Reddit users note that both models share similar accuracy characteristics, so you are paying for features, not better detection capability.

Remote Monitoring with the Airthings Hub

To monitor radon levels remotely when you are away from home, you need the Airthings Hub, which is sold separately. The Hub connects to your Wi-Fi network and bridges Bluetooth devices to the cloud, enabling remote access through the Airthings app from anywhere.

This adds to the total cost, but it transforms the Corentium Home 2 from a local monitor into a full smart home radon tracking system comparable to the Airthings Wave Radon.

How to Choose the Best Radon Detector for Your Home

Choosing among the best radon detectors comes down to your specific needs, budget, and testing goals. Here is what our team learned from testing these devices across multiple homes and comparing them against professional equipment.

Accuracy and Sensor Technology

The sensor type directly affects how quickly and accurately a detector measures radon. Ionization chamber sensors, like those in the Ecosense RD200 and EcoBlu, offer the highest sensitivity with counting efficiencies of 30 counts per hour per pCi/L. Semiconductor sensors, found in the AEGTEST HOUND and Forensics FD-65, are more affordable but may take longer to stabilize.

The C-NRPP 2023 study confirmed that Ecosense ion chamber sensors outperform competitors in accuracy tests. If precision is your top priority, choose a detector with ion chamber technology. For general monitoring where a 0.5 pCi/L margin of error is acceptable, semiconductor sensors work well.

Power Source and Portability

Battery-powered detectors like the Airthings Corentium Home, Aranet, and Airthings Wave offer maximum placement flexibility. You can mount them on walls, place them on shelves, or move them between rooms without worrying about outlet proximity. Plug-in detectors like the Ecosense RD200, Safety Siren Pro4, and EcoBlu require a nearby outlet but never need battery replacements.

Battery life varies dramatically. The Aranet leads with a 7-year rating, followed by the X-Sense at 24 months, and most Airthings models at 12 to 18 months. Factor in the cost and hassle of battery replacements when comparing prices.

Display Type and Readability

E-Ink displays like the Aranet’s offer the best readability in all lighting conditions but typically cost more. OLED and LCD screens are adequate for most users, though they can wash out in direct sunlight. The Airthings Wave’s color-coded LED ring is unique and works well for quick visual checks without reading numbers.

For users who want raw data, look for displays that show multiple averaging periods. The Ecosense EcoBlu shows real-time, daily, weekly, monthly, and yearly averages on screen, which is comprehensive for a non-app device.

Connectivity and Smart Features

Bluetooth-only detectors require your phone to be within range for data access. Wi-Fi enabled devices, typically through a hub, allow remote monitoring from anywhere. The Airthings Wave supports Alexa and Google Assistant for voice-activated status checks.

If smart home integration matters to you, the Airthings Wave is the clear choice. For maximum privacy with zero connectivity, the X-Sense and Safety Siren Pro4 operate completely offline.

Where to Place Your Radon Detector

The EPA recommends placing radon detectors in the lowest livable level of your home. For most houses, this means the basement or ground floor. Position the detector at least 20 inches off the floor, away from windows, doors, exterior walls, and air vents that could affect readings.

Avoid kitchens, bathrooms, and laundry rooms where humidity and ventilation changes can skew results. Allow at least 48 hours after placement before trusting readings, as sensors need time to equilibrate with the environment. For the most reliable results, conduct tests during closed-house conditions with windows and doors shut.

Understanding EPA Radon Action Levels

The EPA action level for radon is 4.0 pCi/L. If your detector shows levels at or above this threshold, the EPA recommends taking action to reduce radon through mitigation. Levels between 2.0 and 4.0 pCi/L still carry health risks, and the EPA suggests considering mitigation at these levels as well.

Radon mitigation typically costs between $800 and $1,500 for a professional sub-slab depressurization system. Post-mitigation monitoring is essential to verify the system is working, making continuous radon detectors valuable long-term investments.

Seasonal Testing and When Radon Is Highest

Radon levels are typically highest during winter months when homes are sealed tight against cold weather. Frozen ground and snow cover can also trap radon gas near foundations, increasing indoor concentrations. Summer readings are generally lower due to open windows and increased ventilation.

The EPA recommends testing every two years, or after any major home renovation that could change airflow patterns. If your initial short-term test shows levels near 4 pCi/L, follow up with a long-term test of 90 days or more for a more accurate annual average.

FAQs

Final Thoughts on the Best Radon Detectors for 2026

After testing and comparing 10 detectors across multiple homes, our top recommendation for most homeowners is the Airthings Corentium Home 223. Its proven accuracy, 10,000-plus review track record, and simple operation make it the best overall choice for anyone serious about radon safety. For budget-conscious buyers, the Ecosense EcoBlu EB100 delivers professional-grade sensor accuracy at an unbeatable price point.

If accuracy is your absolute priority, the Ecosense RD200 RadonEye is backed by the C-NRPP 2023 study as the most precise consumer detector available. For smart home enthusiasts, the Airthings 2950 Wave Radon offers the best connected experience with Alexa and Google Assistant support. And for a long-term investment that lasts decades, the Forensics FD-65 with its 20-year sensor life is unmatched.

The best radon detectors are only useful if you actually use them. Pick the one that fits your budget and lifestyle, place it properly in your lowest living level, and check the readings regularly. Radon is a serious health threat, but it is also one of the most manageable home safety risks when you have the right monitoring tool in place. Test your home this year, and if levels are elevated, take action to protect your family.