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Radiation Detector

FNIRSI GC-01 Geiger counter Nuclear Radiation Detector - Personal Dosimeter

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⚖️ 1.0 lb
🏷️ Radiation Detector
$69.50
$89.99
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Looking for the best nuclear radiation detector? Check out the FNIRSI GC-01 Geiger Counter Radiation Detector, a multifunctional device with a built-in GM sensor that detects nuclear and electromagnetic radiation traces. It has a fast response time, high accuracy, and an energy range of 48KeV-1.5MeV.



This electronic personal dosimeter features a silicone-covered design that is antislip, anti-drop, wear-resistant and has a comfortable grip. The detector has a configured LCD color screen that displays real-time values such as current dose rate, cumulative measured value, cumulative stored dose rate, maximum value, average value, starting date, and cumulative time.



The FNIRSI GC-01 is optimal for measuring small changes in radiation levels and has a high sensitivity for the most commonly used nuclides. With three alarm modes, you can set vibration, light, and sound alerts for when the dose rate and cumulative dose exceed threshold values.

This nuclear radiation measurement device is suitable for various applications, from family decoration to radiation treatments, and industry flaw detection. It has a wide range of radiation dose rates from 0.01μSv/h-1000μSv/h (can be up to 10mSv/h) and the detector's energy compensation GM tube (Geiger technology tube) has a sensitivity of 80CPM/μSv (for Co-60).


The FNIRSI GC-01 Geiger Counter Radiation Detector comes with a cable and manual and has a built-in 1100mAh rechargeable lithium battery. It is made of ABS + silicone material and has dimensions of 120 * 78 * 27mm / 4.72 * 3.07 * 1.06in.

Product Features:

  • The device can detect X-ray, Y-ray, and beta-ray.

  • It has high sensitivity and can operate in various environments.

  • The interface is bilingual in Chinese and English, making it easy to operate and use.

  • The device has power-down data storage.

  • Users can select from three alarm modes - light, vibration, and sound - to suit their preferences.

  • The device has a real-time clock display.

  • Users can set the dose rate and accumulated dose alarm thresholds.

Product Parameters:

  • Device Type: Nuclear radiation detector

  • Size: 120x78x27mm

  • Types of Rays Detected: Y-ray, X-ray, Beta-ray

  • Detector: Energy compensation GM tube (Geiger technology tube)

  • Dose Current Rate: 0.00-1000uSv/h (10mSv/h)

  • Accumulated Dose Equivalent: 0.00uSv-500.0mSv

  • Energy Range: 48keV-1.5Mev≤±30% (for 137Cs-)

  • Language: Bilingual (Chinese and English)

  • Sensitivity: 80CPM/μSv (for Co-60)

  • Dose Unit: μSv/h, μGy/h, mR/h, cps.cpm switchable

  • Power Supply: 1200mAh built-in battery

  • Alarm Mode: Light, vibration, and sound

Package Contents:

1x Nuclear Radiation Detector
1x Cable
1x Manual

Get your hands on one of the best radiation detectors available in the market!

Order the FNIRSI GC-01 Geiger Counter Radiation Detector today!

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FNIRSI GC-01 Geiger counter Nuclear Radiation Detector - Personal Dosimeter
FNIRSI GC-01 Geiger counter Nuclear Radiat...
$69.50

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Frequently Asked Questions

How long does the FNIRSI GC-01 battery last before needing replacement?

The FNIRSI GC-01 typically runs for 200+ hours on standard batteries, depending on usage frequency and radiation exposure levels being monitored. Battery life is extended when the device is used intermittently rather than continuously.

Can I use the FNIRSI GC-01 for everyday carry or is it only for emergencies?

The FNIRSI GC-01 is suitable for both everyday carry and emergency situations due to its compact size, silicone anti-slip design, and durable anti-drop construction. Many professionals in nuclear facilities, geology, and medical imaging use it as a daily personal dosimeter.

What's the difference between the 48KeV-1.5MeV energy range and why does it matter?

This energy range means the FNIRSI GC-01 can detect most common radiation types including beta and gamma rays relevant to nuclear incidents and radon detection. The wider the range, the more radiation sources it can identify, making this device suitable for general-purpose radiation monitoring.

How do I know if the FNIRSI GC-01 needs calibration, and how often should I calibrate it?

Professional calibration is recommended annually for accurate dosimetry readings, especially if used in regulated environments like hospitals or nuclear facilities. You can perform basic operational checks regularly using the device's self-test feature to ensure the sensor is responding.

Is the silicone cover on the FNIRSI GC-01 removable for cleaning?

Yes, the silicone cover is removable, making it easy to clean and maintain while protecting the internal GM sensor from dust and moisture. This design also allows for replacement if the cover becomes worn.