Top 5 Radon Testing Kits for Montgomery County Homes
- Written by: Kate Holder
- Category: Radon Law MD
- Published: April 24, 2025
Radon gas is a dangerous, invisible threat that can seep into your home—especially in areas like Montgomery County, Maryland, where elevated radon levels are common due to local geology.
As of July 1, 2023, Montgomery County law (Bill 26-22) requires radon testing every 3 years for rental properties. Whether you’re a homeowner, renter, or landlord, testing your property is now more important—and in some cases, mandatory.
In this locally-focused guide, we review the Top 5 Radon Testing Kits based on accuracy, ease of use, cost, and how well they serve homes and properties in Rockville, Gaithersburg, Silver Spring, and the surrounding Montgomery County area.
1. First Alert RD1 Radon Gas Test Kit
Best for: Simple, budget-friendly testing in compliance with local law
Pros:
- EPA-approved lab analysis (included in price)
- Great for short-term testing (2–4 days)
- Fast lab turnaround: 3–5 business days
Cons:
- One-time use
- Mailing to the lab required
✅ Ideal for landlords complying with Montgomery County’s radon testing ordinance.
2. Airthings Corentium Home Digital Radon Detector
Best for: Long-term monitoring in Gaithersburg, Bethesda, or Clarksburg homes
Pros:
- Measures daily, weekly, and long-term radon levels
- Real-time results via digital screen
- Battery-powered and portable
Cons:
- No lab report for real estate transactions
- Higher cost
✅ Perfect for homeowners wanting 24/7 monitoring and peace of mind.
3. AccuStar Alpha Track AT100
Best for: Long-term certified testing (90+ days) for Rockville rental units
Pros:
- Extremely accurate for extended periods
- Lab fees included
- Accepted for property compliance
Cons:
- Requires at least 3 months of testing
- Mail-in results can take a week
✅ Recommended for landlords needing test results valid for Montgomery County housing compliance.
4. Radon Eye RD200 Smart Detector
Best for: Real estate professionals and tech-savvy homeowners
Pros:
- First reading in just 10 minutes
- App-based tracking with real-time updates
- Sleek and compact
Cons:
- Needs a power outlet
- More expensive than passive kits
✅ A fantastic tool for realtors or buyers in Silver Spring or Wheaton homes looking for fast data.
5. PRO-LAB Long-Term Radon Test Kit
Best for: Low-cost, long-term compliance in Montgomery County
Pros:
- Inexpensive
- Lab fees included
- Tests for 90 to 365 days
Cons:
- Slower result processing
- No instant feedback
✅ An affordable option for property owners who want to stay compliant without breaking the bank.
Why Radon Testing Matters in Montgomery County, MD
Montgomery County homes—especially those in basement-heavy neighborhoods like Kensington, Olney, and Germantown—are at higher risk for radon gas buildup. Local ordinances are now enforcing regular testing, and renters are beginning to ask for proof of recent results.
Don’t wait until a buyer backs out or a tenant raises concerns. A small investment in radon testing today can save money—and lives—tomorrow.
Need Help Choosing a Test or Scheduling a Professional Inspection?
Whether you’re a homeowner in Rockville, a landlord in Gaithersburg, or a property manager overseeing rentals in Silver Spring, AAARadonTesting.com is your go-to resource for:
- Radon compliance consulting
- Certified mitigation services
- In-home and lab-based testing options
📍 Proudly serving all of Montgomery County, MD—schedule your test or get expert guidance today.
👉 Contact us now or call 240-224-0577 for local service you can trust.
