Active Radon Detectors
The AlphaE from Bertin is a compact, professional hand-held device for fast and time-resolved radon monitoring in buildings, outdoors and in mines.
- Measuring range: 20 Bq/m³ to 10,000,000 Bq/m³
- Light and small, ideal for personal radon exposure measurements
- Battery-powered with a battery life of up to 6 months
- Stores measurement data for up to 6 months at 1-hour measurement intervals
- Fast and accurate measurements, 80% of the final value after 2 hours
Manufacturer according to GPSR
Bertin
- Color
The EcoBlu is a compact radon measuring device that impresses with its fast and precise measurement of indoor radon concentrations.
- Quick and accurate measurement
- Easy operation
- Large digital display
- Without WiFi or Bluetooth
- Compact design
Manufacturer according to GPSR
Ecosense
- Variation
- Programming Adapter
The AlphaTracer Industry is a patented real-time radon sensor specially developed for use in demanding environments such as waterworks, tunnels, mines and industrial plants.
- Measuring range: 0 - 1,000,000 Bq/m³
- High sensitivity: 17 cph @ 100 Bq/m³
- Splash-proof housing (IP54)
- M12 connector for robust connections
- Various interface options: Serial 12V & PWM (0-10V), Modbus 485, Modbus TCP/IP, WiFi
Manufacturer according to GPSR
RadonTec GmbH
The AlphaSniffer from RadonTec is a professional device for the rapid detection of radon ingress paths in buildings.
- Localisation of radon entry points
- Quick detection: approx. 15 - 30 seconds
- Powerful rechargeable battery: 19 - 20 hours operating time
- Large OLED display: 3.2 cm x 1.8 cm
- Supplied in a robust protective case
Manufacturer according to GPSR
RadonTec GmbH
The RTM 2200 Soil Gas from SARAD is a high-precision radon and thoron measurement system that has been specially developed for the fast and reliable in-situ measurement of radon in soil.
- Integrated determination of soil permeability
- Automatic protection against water ingress during measurement
- Built-in GPS receiver for easy mapping of the measuring points
- Rugged, splash-proof housing (IP67) for field use
- Fulfils the requirements of EN ISO 11665-11 for radon soil gas measurements
Manufacturer according to GPSR
Sarad
The RTM 1688-2 from SARAD is a versatile radon and thoron monitor that covers the entire spectrum of radon measurement and is suitable for use indoors, outdoors and in mines.
- Measuring range: 0 - 10,000,000 Bq/m³
- Real-time measurement with fast response time
- Integrated pump for soil air and water sampling
- High sensitivity due to optimised high-voltage measuring chamber
- Operation via mains adapter or internal rechargeable battery with up to 14 days runtime
Manufacturer according to GPSR
Sarad
The RadonEye RD200 has been our bestseller for many years - a high-precision radon measuring device for private use that enables the fastest and most reliable measurements of indoor radon concentrations.
- Fastest measurement
- Highest accuracy
- Real-time monitoring
- Smartphone connectivity
- Easy handling
Manufacturer according to GPSR
FTLab
The Corentium Home from Airthings is a user-friendly, battery-operated radon meter for domestic use that enables quick and precise measurements of the radon concentration indoors.
- Measuring range: 0 - 9999 Bq/m³
- Display of daily, weekly and annual average values
- High-quality LCD display
- Insensitive to sources of interference
- Simple operation
Manufacturer according to GPSR
Airthings
- Version
The Radon Scout Home from SARAD is a reliable device for long-term monitoring of indoor radon concentrations, ideal for homeowners, tenants and landlords.
- Measures radon, temperature and humidity
- Time-resolved measurement with data recording
- USB interface for easy data transfer
- Optionally available with CO₂ or pressure sensor
- Incl. professional analysis software ‘Radon Vision’
Manufacturer according to GPSR
Sarad
Active Radon Monitors: Digital radon testing with trends, export, app, Wi-Fi & Bluetooth
If you want to measure radon clearly, continuously, and with time-resolved data, an active radon monitor is the right choice. Active devices run on electricity (plug-in or battery), show readings on a display or in an app, and allow you to track radon levels over hours, days, and weeks—often with data export for documentation and deeper analysis. (radonshop.com)
Because radon levels fluctuate significantly (weather, ventilation, pressure differences), active monitoring gives you the real advantage: you can see when levels rise, which rooms are affected, and whether actions (ventilation, sealing, mitigation) actually work.
Who should use an active radon monitor?
Active radon detectors are especially useful for:
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Homeowners & tenants who want quick clarity and plan to test multiple rooms
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Families monitoring living and sleeping areas
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Property buyers looking for practical insight before purchasing
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Landlords & facility managers who need traceable documentation
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Schools, kindergartens, public buildings where transparency matters
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Building biologists, inspectors & engineers who rely on exports and professional evaluation (radonshop.com)
Our bestseller: RadonEye (RD200) – fast, accurate, user-friendly
The RadonEye RD200 is one of the most popular choices for residential radon monitoring. It delivers fast indications, is excellent for room-to-room testing, and is easy to use via smartphone app. (radonshop.com)
Why customers love it:
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quick first insight while still suitable for longer monitoring
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app-based history and trends
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widely used, proven device with strong real-world track record (radonshop.com)
(Important: Even if a device provides quick readings, meaningful decisions usually require several days or weeks of data due to radon variability.) (radonshop.com)
What you’ll find in this category
RadonShop.com intentionally offers a broad range—from easy home monitors to professional instrumentation. (radonshop.com)
1) Home monitors (simple, digital, fast)
Great for apartments/houses, basements, living rooms—often with display and/or app connectivity. Examples listed in this category include RadonEye, Airthings Corentium Home / Home 2, Ecosense EcoQube / EcoBlu. (radonshop.com)
2) Monitoring & trend-focused devices (export & long-term tracking)
Ideal if you want to log, compare and document (after mitigation, with ventilation systems, or across multiple rooms/buildings). Many devices support app/software analysis and exports. (radonshop.com)
3) Professional radon instruments (inspection, building biology, engineering)
For advanced requirements, detailed datasets, and specialized applications—e.g., solutions by SARAD and Bertin among others listed in the category. (radonshop.com)
Why “time-resolved” measurement matters
Radon is rarely stable. Active monitoring typically provides:
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current readings (depending on device, shorter intervals)
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averages (e.g., 24h, 7-day, long-term since reset)
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peak / maximum indications (device-dependent)
This helps you identify patterns such as:
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“levels rise at night / when windows stay closed”
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“basement is high, ground floor is fine”
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“after sealing, the baseline drops measurably”
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“certain weather conditions push radon indoors”
That transparency is the key advantage over passive testing. (radonshop.com)
Data export, app, Wi-Fi, Bluetooth — what do you actually need?
Common buyer question: “Which features matter most?”
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On-device display: best for quick checks without a phone
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App connection (Bluetooth/Wi-Fi): great for trends and convenience
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Export (CSV/software): essential for documentation (reports, compliance, mitigation verification) (radonshop.com)
If your goal is “just check if radon is an issue,” a solid home monitor may be enough. If you want to prove, compare, and document, export and software features are a must.
FAQ — quick answers
How fast do I get first results?
Many active devices provide quick indications, but reliable conclusions should use several days/weeks of data. (radonshop.com)
Where should I place the device?
Use the most occupied rooms, especially near ground level. Avoid drafts, windows, and strong heat sources. For source-finding: compare rooms under similar conditions. (radonshop.com)
How many monitors do I need?
Often one device is enough if you test rooms sequentially. For permanent monitoring in multiple locations (e.g., basement + bedroom), two devices can make sense.
Can I rent instead of buying?
Yes—RadonShop also offers a radon monitor rental option. (radonshop.com)
