Best Radon Test Kits
Reviewed and Ranked

The First Alert RD1 is the go-to radon test kit for first-time testers. Using activated charcoal technology listed under the EPA Radon Gas Measurement Proficiency Program, you simply place the canister in the lowest lived-in level of your home for 2-4 days, then mail it to the certified lab in the included prepaid envelope. Results arrive by email within 3-5 business days — no subscriptions, no apps, no fuss. A reliable choice with lab fees already baked into the price (NJ state fees excluded).

LAB-PRO offers a quick Radon tester designed for short-term use, our radon testing kit offers a swift overview of radon levels, making it ideal for initial home screenings.

When you're buying or selling a home, the EPA generally recommends duplicate simultaneous testing. The PRO-LAB Dual Kit includes two activated charcoal canisters designed to run together in the same location — the format most real estate professionals and inspectors require. Lab fees for both detectors are included in the all-inclusive ASIN (B08VBPGV82). The lab is NRPP and NRSB certified, and results meet CRCPD standards accepted in all 50 states. Important: always purchase ASIN B08VBPGV82 to avoid surprise lab fees.

Radonova is the world's largest radon laboratory, operating in over 50 countries, and the Radtrak3 is their flagship consumer detector. The alpha track technology measures radon exposure over 90 days to 1 full year, capturing seasonal fluctuations that short-term kits miss entirely. The kit includes the detector, registration instructions, and return postage. Once mailed back, your lab report lands in your inbox within 7-10 business days. EPA-approved. This is the kit radon professionals recommend when you need the most accurate annual average.

AccuStar's Alpha Track AT-100 has long been the benchmark for long-term residential radon testing. Rated #1 by a major consumer advocacy group, it uses a patented diffusion-based track detector that filters out dust and radon progeny for cleaner counting statistics. Deploy it for 91 days to 12 months under normal living conditions — no closed-house conditions required. Results are emailed within 2 weeks of lab receipt and are also accessible via AccuStar's 24-hour toll-free number. Available in single and double packs.

The Airthings Corentium Home is the best-selling and highest-rated digital radon detector on Amazon, with over 10,000 reviews and a 4.6-star average. It runs on 3 AAA batteries (included, ~2-year life) and displays short-term (1-day, 7-day) and long-term radon averages on a clear LCD screen — no apps, no Wi-Fi, no recurring lab fees. Third-party tested by the Canadian National Radon Program (C-NRPP) to 90% accuracy within 7 days. Portable enough to test multiple rooms. Generate a free self-inspection report from the Airthings website after 30+ days of data.

For homeowners who want a complete picture of indoor air quality, the Airthings Wave Plus goes beyond radon to monitor CO2, volatile organic compounds (VOCs), humidity, temperature, and air pressure. It connects via Bluetooth to the free Airthings app for historical charts, trend analysis, and alerts. Compatible with Amazon Alexa, Google Assistant, IFTTT, and Homey. A color-coded LED ring on the front provides instant visual feedback — green means you're safe, red means it's time to ventilate. Battery powered with up to 1.5 years per set.