Description
Product Overview
The FNIRSI GC-03 is a comprehensive 3-in-1 radiation detector designed to monitor nuclear radiation, electric fields, and magnetic fields, providing all-around protection for your health. It detects Gamma, Beta, and X-rays with a cumulative dose equivalent range of 0.00 uSv to 500.0 mSv and an energy range of 48 KeV to 1.5 MeV (±30%). For electromagnetic fields, it measures magnetic fields from 0.01μT to 99.99μT (or 999.9 mG) and electric fields from 1V/m to 1999V/m, with a frequency range of 50MHz to 3GHz. The device includes a built-in lithium polymer battery, has package dimensions of 7.28 x 4.49 x 1.85 inches, weighs 11.36 ounces, and is manufactured by FNIRSI, first available on June 5, 2025. Its core features include real-time monitoring, multiple alert types, and a user-friendly interface for accurate environmental safety assessment.

Usage
The FNIRSI GC-03 is suitable for a variety of environments, including homes, workplaces, laboratories, and outdoor areas where radiation or electromagnetic field monitoring is essential. It is ideal for individuals concerned about nuclear radiation exposure, such as in industrial settings, research facilities, or during outdoor activities like hiking in potentially contaminated areas. The device also serves professionals in safety and health roles, as well as homeowners looking to ensure a safe living environment by detecting electric and magnetic fields from appliances and wiring.
Why Choose Us
FNIRSI GC-03 stands out due to its multifunctional design, combining nuclear, electric, and magnetic field detection in one compact device, eliminating the need for multiple instruments. It offers high accuracy with professional-grade specifications, such as a wide energy range and precise measurement capabilities, backed by FNIRSI’s reputation in industrial and scientific tools. The inclusion of real-time alerts, multiple display modes, and a day/night theme enhances usability and reliability, ensuring you receive timely warnings and clear data in any situation, making it a cost-effective and dependable choice for comprehensive radiation monitoring.
Key Features
- 3-in-1 detection for nuclear radiation, electric fields, and magnetic fields for complete environmental safety
- Real-time monitoring with visual, audible, and vibration alerts when radiation exceeds safe levels
- Three display modes (curve, professional, and quick view) for flexible and clear data visualization
- Day and night theme display for optimal readability in any lighting condition, indoors or outdoors
- Track up to 50 alarm history sets to maintain ongoing awareness and review past incidents
FAQ
What types of radiation can the GC-03 detect?
The GC-03 detects Gamma, Beta, and X-rays, covering a broad energy range from 48 KeV to 1.5 MeV with high accuracy for comprehensive nuclear radiation monitoring.
How does the alarm system work for electromagnetic fields?
For magnetic and electric fields, the device displays an over-limit status on the interface without vibration, sound, or light prompts, allowing you to monitor changes visually without disruptive alerts.
Can I use this device in low-light conditions?
Yes, the GC-03 features both light and dark display modes, ensuring the screen remains clear and easy to read in any lighting, whether you are indoors or in dim environments.
What is the battery life and type?
It uses one built-in lithium polymer battery, providing reliable power for extended use, and is included with the device for immediate operation upon receipt.
Is this suitable for professional laboratory use?
Absolutely, with its precise measurements and professional display modes, the GC-03 is designed for both personal and professional applications, including laboratories and industrial settings where accurate radiation detection is critical.




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