FNIRSI® GC-03 Multifunctional Radiation Detector
FNIRSI® GC-03 Multifunctional Radiation Detector is a professional portable radiation monitoring instrument developed for accurate real-time detection of nuclear radiation levels in various environments. Utilizing dual Geiger-Müller counter tubes, the GC-03 provides improved sensitivity and wider radiation detection capability compared to standard single-tube radiation detectors.
Features:
- 3-in-1 Radiation Detection: Detects electric fields, magnetic fields, and nuclear radiation — all in one device for comprehensive safety monitoring.
- High-Precision Geiger Counter Tube: Equipped with J321/M4011 GM tube for precision detection, high sensitivity and low power consumption.
- Wide Application Scenarios: Ideal for use around nuclear power plants, seafood, imported food, CT scans, microwaves, laptops, refrigerators, washing machines, and more.
- Dynamic Curve Mode + 50 Alarm Records: Real-time radiation trend visualization with up to 50 stored alarm history records for traceable monitoring.
- Triple Alarm Modes with Custom Thresholds: Get alerts via visual, audible, and vibration modes. Set custom alarm limits for different working conditions.
- Wide Measurement Range: Measures dose equivalent rate from 0.00–10,000μSv/h (10mSv/h) and cumulative dose up to 500.0mSv, suitable for both daily and professional use.
- Full Spectrum Ray Detection: Supports detection of γ, X, Hard β Rays radiation, covering various radiation types.
- Smooth Rotary Knob Control: User-friendly rotary knob design makes switching functions quick and intuitive.
- 1500mAh Long-Lasting Battery: Large-capacity battery ensures extended operation time, perfect for field and mobile use.
Specifications:
| Parameter | Value |
|---|---|
| Model | GC-03. |
| Color | White. |
| Display Screen Size | 2.4-inch color screen. |
| Backlight | Brightness Adjustable. |
| Power Supply | TYPE-C (5VDC/1A). |
| Battery | 1500mAh. |
| Languages | 中文, English. |
| Product Size | ≈138×63×32mm. |
| Net Weight | ≈141g. |
| Nuclear Radiation Range | 0.01µSv/h to 999.99µSv/h. |
| Nuclear Radiation Accuracy | 0.01µSv/h. |
| Electric Field Range | 1V/m to 1999V/m. |
| Electric Field Accuracy | 1V/m. |
| Magnetic Field Range | 0.01µT to 99.99µT. |
| Magnetic Field Accuracy | 0.01µT. |
| Radiation Power | 0.2 to 1000mW/m². |
| Detection Radiation Type | Ionizing radiation (gamma rays, etc.). |
| Detector | Energy compensation GM tube (Geiger counter tube). |
| Dose Current Rate | 0.00 to 10000µSv/h (10mSv/h). |
| Cumulative Dose Equivalent | 0.00µSv to 500.0mSv. |
| Energy Range | 48keV to 1.5MeV ≤ ±30% (for 137Cs). |
| Sensitivity | 80CPM/µSv. |
| Dose Unit | µSv/h, uGy/h, mR/h, CPS, CPM. |
| Alarm Mode | Light, vibration, sound. |
Applications:
- Environmental radiation monitoring.
- Nuclear radiation inspection.
- Laboratory radiation testing.
- Industrial safety monitoring.
- Radioactive material detection.
- Medical equipment inspection.
- Educational radiation experiments.
- Metal and mineral inspection.
- Radiation source detection.
- Research laboratory applications.
- Portable field monitoring.
- Industrial maintenance and diagnostics.
Package Include:
- 1x FNIRSI® GC-03 Multifunctional Radiation Detector unit.
- 1x USB-C charging cable.
- 1x User manual (English/Chinese).













