1. Ynlieding
The FNIRSI GC-01 is a portable nuclear radiation detector designed for monitoring Beta, Gamma, and X-ray radiation. This device features a built-in GM sensor for accurate detection and offers multiple dosage units, smart alarm functions, and a clear LCD display. This manual provides essential information for the safe and effective operation of your GC-01 detector.
2. Produkt Overview
The FNIRSI GC-01 is equipped with a high-sensitivity Geiger-Müller (GM) tube, capable of detecting various types of ionizing radiation. Its compact design and rechargeable battery make it suitable for a wide range of applications, from personal safety monitoring to environmental surveys.

Image: The FNIRSI GC-01 Nuclear Radiation Detector, highlighting its key features.
Key Features:
- Radiation Detection: Detects Gamma, Beta, and X-rays.
- Mjitberik: Cumulative dose equivalent from 0.00 μSv to 500.0 mSv.
- Enerzjy berik: 48 KeV - 1.5 MeV ≤ ±30% (for 137 Csγ).
- Smart Alarm System: Features light, vibration, and sound alerts. Customizable alarm thresholds for current and cumulative dose.
- Skerm: LCD screen for real-time monitoring and waveform display.
- Meardere ienheden: Supports μSv/h, μGy/h, mR/h, CPS, and CPM.
- Oplaadbere batterij: Built-in 1100mAh Lithium Polymer battery with Type-C charging port.
- Taalopsjes: Ingelsk en Sineesk.
3. Package Ynhâld
Kontrolearje by it útpakken oft alle hjirûnder neamde items oanwêzich binne en yn goede steat binne:

Image: The FNIRSI GC-01 device, user manual, and charging cable.
- FNIRSI GC-01 Nuclear Radiation Detector
- User Manual
- USB Type-C oplaadkabel
- Packaging Box
4. Ynstelling en earste gebrûk
4.1 It apparaat opladen
Before first use, fully charge the FNIRSI GC-01 using the provided USB Type-C cable and a standard USB power adapter (not included). The charging port is located on the side of the device.

Image: Close-up of the FNIRSI GC-01 showing the Type-C charging port.
4.2 Yn-/útskeakelje
To power on the device, press and hold the power button (usually marked with a power symbol) until the screen illuminates. To power off, press and hold the power button again until the device shuts down.
5. Bedriuwsinstruksjes
The GC-01 features an intuitive interface for monitoring radiation levels. Use the navigation buttons (up, down, left, right, OK) to interact with the device.

Image: The main monitoring interface of the FNIRSI GC-01, displaying current, average, maximum, and cumulative radiation values.
5.1 Monitoring Interface
The main screen displays real-time radiation data, including:
- Current Dose Rate: Instantaneous radiation level (e.g., μSv/h).
- Average Dose Rate: Average radiation level over a period.
- Maximum Dose Rate: Highest radiation level detected.
- Kumulative dosis: Total accumulated radiation dose since the last reset.
- Waveform Monitoring: A graphical representation of radiation levels over time can be accessed from the main interface.

Image: Screenshots showing the Monitoring Interface, Waveform Monitoring, Unit Setting, and Alarm Settings menus.
5.2 Unit ynstellings
Om de mjitte-ienheid te feroarjen:
- Druk op it haadskerm op de Ynstellings button (gear icon).
- Navigearje nei Units using the up/down buttons and press OK.
- Select your desired unit (μSv/h, μGy/h, mR/h, CPS, CPM) and confirm with OK.
5.3 Alarmynstellingen
The device can be configured to alert you when radiation levels exceed predefined thresholds.
- Druk op it haadskerm op de Ynstellings knop.
- Navigearje nei Alarms en druk OK.
- You can set thresholds for Aktuele Alarm en Cumulative Alarm. Adjust values using the navigation buttons.
- Yn de Ala Mode menu, select your preferred alarm modes: Ljocht, Vibrearje, en/of Sound.

Image: The FNIRSI GC-01 displaying the three alarm modes: Sound, Glitter (Light), and Vibrate.
5.4 System Clock and Display Settings
You can adjust the system date and time, and customize display settings such as brightness or language.
- Tagong ta de Ynstellings menu.
- Selektearje Sys Clock om de datum en tiid yn te stellen.
- Selektearje Set disp to adjust display options, including language (English/Chinese).

Image: Screenshots showing the System Clock, Alarm Mode, and Display Settings menus.
6. Underhâld
6.1 Cleaning
Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or solvents, as they may damage the casing of skerm.
6.2 Batterij Soarch
Om de libbensdoer fan 'e batterij te ferlingjen, foarkom dat jo it apparaat faak folslein ûntlade. Laad de batterij op as de yndikator foar lege batterij ferskynt. As jo it apparaat foar in langere perioade opslaan, laad it dan elke pear moannen oant sawat 50% op.
6.3 Opslach
Store the device in a cool, dry place away from direct sunlight and extreme temperatures. Keep it away from strong magnetic fields.
7. Probleemoplossing
| Probleem | Mooglike oarsaak | Oplossing |
|---|---|---|
| Apparaat giet net oan. | Lege batterij of apparaatstoring. | Laad it apparaat op syn minst 30 minuten op. As it noch altyd net oangiet, nim dan kontakt op mei de stipe. |
| Unkrekte lêzingen. | Interference from other electronic devices or incorrect unit settings. | Move away from potential sources of electromagnetic interference. Verify the correct measurement unit is selected in settings. |
| Alarm giet net ôf/trilt net. | Alarm thresholds not set or alarm mode disabled. | Check alarm settings and ensure desired alarm modes (sound, vibrate, light) are enabled. |
| It skerm is leech of beferzen. | Softwarefout. | Press and hold the power button for 10-15 seconds to force a restart. If the issue persists, contact support. |
8. Spesifikaasjes

Ofbylding: Oerview of the FNIRSI GC-01's display, alarm modes, charging, and portability.
| Parameter | Wearde |
|---|---|
| Soarten deteksjestralen | γ rays, X rays, β rays |
| Detektor | Energy Compensation GM Tube (Geiger Technology Tube) |
| Dosis lykweardige taryf | 0.00-10000μSv/oere (10mSv/oere) |
| Kumulative Dose Equivalent | 0.00μSv-500.0mSv |
| Enerzjy Range | 48KeV-1.5MeV ±30% (for 137Cs-) |
| Taal | Chinese, English switch |
| Gefoelichheid | 80CPM/μSv (For Co-60) |
| Dosage Unit | nSv/h, pGy/h, mR/h, cps, cpm Switch |
| Streamtafier | 1100mAh Lithium batterij |
| Alarmmetoade | Light, vibration, sound |
| Ofmjittings | 120 x 78 x 27 mm |
| Item Gewicht | 8.1 ounces (0.23 kilogram) |
9. Wichtige feiligens ynformaasje
Always operate the device according to the instructions provided in this manual. Do not attempt to modify or repair the device yourself. Keep the device away from water and extreme temperatures. This device is intended for general radiation monitoring and should not be used as a substitute for professional radiation safety equipment in critical environments without proper calibration and certification.
10. Produktfideo
Watch this official product video for a visual guide on the FNIRSI GC-01 Nuclear Radiation Detector.
Fideo: In oerview of the FNIRSI GC-01 Nuclear Radiation Detector, demonstrating its features and operation.
11. Garânsje en stipe
For warranty information and technical support, please refer to the contact details provided with your purchase or visit the official FNIRSI webside. Bewarje jo oankeapbewiis as bewiis fan oankeap.