XR-1 Portable Geiger Counter Nuclear Radiation Detector

XR-1 Portable Geiger Counter & Personal Radiation Dosimeter

The XR-1 Portable Geiger Counter is a compact, easy-to-use nuclear radiation detector designed for professionals and enthusiasts working in nuclear physics research, environmental monitoring, and industrial applications. With three distinct measurement modes and high detection accuracy, this personal dosimeter gives you reliable, real-time radiation data wherever you go.

Made in Mainland China.

Key Features

• Compact & Portable: Slim ABS housing fits easily in a tool bag, pocket, or field kit — ready whenever you need it.
• Three Detection Modes:
  • Real-Time Dose (REAL): Updates every second for an instant, high-fidelity readout of current radiation levels (Unit: µSv/h). Automatically active upon power-on — no extra steps needed.
  • Mean Dose (AVG): Calculates and displays the average dose over a measured period, ideal for checking background radiation levels in low-radiation environments (Unit: µSv/h). Press the M button to reset and recalculate.
  • Cumulative Dose (ACC): Tallies total accumulated exposure over time. Data persists after power-off and continues accumulating when the device is switched back on (Unit: mSv). Press L + R simultaneously to clear the cumulative total.
• Detects β, γ, and X-ray Radiation: Wide energy range (20 keV–3.0 MeV) makes this detector versatile across a broad spectrum of radiation sources.
• High Sensitivity & Accuracy: Sensitivity of 80 cpm/µSv (Co-60), test accuracy of 0.01 µSv/h, real-time error ≤10%, mean error ≤3%.
• Available in White or Black — choose your preferred color.

Technical Specifications

What's in the Box

• 1 × XR-1 Nuclear Radiation Detector
• Note: Batteries are NOT included.

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Frequently Asked Questions

Q: What types of radiation does the XR-1 Geiger Counter detect?

A: The XR-1 Geiger Counter detects beta (β), gamma (γ), and X-ray radiation across an energy range of 20 keV to 3.0 MeV, making it suitable for a wide variety of nuclear physics, environmental monitoring, and industrial measurement applications.

Q: Does the XR-1 radiation detector come with batteries?

A: No, batteries are not included. The XR-1 is powered by 3 × 1.5V AA batteries or 1.2V rechargeable batteries, which must be purchased separately.

Q: What is the difference between the Real-Time, Mean, and Cumulative dose modes?

A: Real-Time (REAL) mode refreshes every second for an up-to-the-moment radiation reading in µSv/h. Mean (AVG) mode averages all readings over a period for a stable background-level assessment, also in µSv/h. Cumulative (ACC) mode adds up all detected doses over time in mSv, retaining historical data even after the device is powered off — perfect for long-term exposure tracking.

Q: Can the XR-1 Geiger Counter be used for marble or building material testing?

A: Yes. Because the XR-1 detects gamma and X-ray radiation, it can be used to screen natural stone materials such as marble and granite for elevated radiation levels, making it a practical instrument for both field and construction-site assessments.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.