1. Kupu Whakataki
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. Hua Neke Atuview
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.
Āhuatanga matua:
- Radiation Detection: Ka kitea te Gamma, te Beta, me nga hihi-X.
- Awhe Ine: Cumulative dose equivalent from 0.00 μSv to 500.0 mSv.
- Awhe Energy: 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.
- Whakaatu: LCD screen for real-time monitoring and waveform display.
- Waeine Maha: Supports μSv/h, μGy/h, mR/h, CPS, and CPM.
- Pūhiko Rechargeable: Built-in 1100mAh Lithium Polymer battery with Type-C charging port.
- Kōwhiringa Reo: Ingarihi me Hainamana.
3. Ihirangi mokete
I te wetewete, tirohia koa kei te noho nga taonga katoa kei raro nei kei te pai te ahua:

Image: The FNIRSI GC-01 device, user manual, and charging cable.
- FNIRSI GC-01 Kaipupuri Irirangi karihi
- Pukapuka Kaiwhakamahi
- USB Momo-C Taura Whakapae
- Pouaka Whakapaipai
4. Tatūnga me te Whakamahi Tuatahi
4.1 Te Whakataki i te Pūrere
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 Kei te Hiko / Weto
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. Nga Tohutohu Whakahaere
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 Atanga Aroturuki
The main screen displays real-time radiation data, including:
- Te Reiti Horomanga o Nāianei: Instantaneous radiation level (e.g., μSv/h).
- Average Dose Rate: Average radiation level over a period.
- Maximum Dose Rate: Highest radiation level detected.
- Cumulative Dose: 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 Tautuhinga Waeine
To change the measurement unit:
- Mai i te mata matua, paatohia te Tautuhinga button (gear icon).
- Whakatere ki Waeine 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 Tautuhinga Whakaoho
The device can be configured to alert you when radiation levels exceed predefined thresholds.
- Mai i te mata matua, paatohia te Tautuhinga pātene.
- Whakatere ki Whakaoho me te pehi OK.
- You can set thresholds for Pūoho o nāianei a Cumulative Alarm. Adjust values using the navigation buttons.
- I roto i te Ala Mode menu, select your preferred alarm modes: Maama, Wiri, me/ranei Tangi.

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.
- Uru ki te Tautuhinga tahua.
- Tīpakohia Sys Clock ki te whakarite i te raa me te wa.
- Tīpakohia Set disp to adjust display options, including language (English/Chinese).

Image: Screenshots showing the System Clock, Alarm Mode, and Display Settings menus.
6. Tiaki
6.1 Te horoi
Horoia te taputapu ki te kakahu ngohengohe, maroke. Kaua e whakamahi i nga kai horoi, i nga whakarewa ranei, kei kino pea te casing mata ranei.
6.2 Tiaki Pūhiko
To prolong battery life, avoid fully discharging the device frequently. Recharge the battery when the low battery indicator appears. If storing the device for an extended period, charge it to approximately 50% every few months.
6.3 Rokiroki
Store the device in a cool, dry place away from direct sunlight and extreme temperatures. Keep it away from strong magnetic fields.
7. Te Raru
| Raruraru | Take pea | Rongoā |
|---|---|---|
| Kaore te taputapu i te hiko. | He ngoikore te pākahiko, te hapa rānei o te taputapu. | Whakautua te pūrere mō te 30 meneti pea. Ki te kore tonu e tahuri, whakapā atu ki te tautoko. |
| Ko nga panui kore tika. | 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. |
| Kāore te whakaoho e tangi/wiriwiri ana. | Alarm thresholds not set or alarm mode disabled. | Check alarm settings and ensure desired alarm modes (sound, vibrate, light) are enabled. |
| Kei te paratea te mata, kua tio ranei. | Hapa o te rorohiko. | Press and hold the power button for 10-15 seconds to force a restart. If the issue persists, contact support. |
8. Whakatakotoranga

Whakaahua: Ka mutuview of the FNIRSI GC-01's display, alarm modes, charging, and portability.
| Tawhā | Uara |
|---|---|
| Ngā Momo Hiko Kimi | ngā hihi γ, ngā hihi X, ngā hihi β |
| Tirohanga | Ngongo GM Whakautu Pūngao (Ngongo Hangarau Geiger) |
| Reiti Whakaritenga Inenga | 0.00-10000μSv/h (10mSv/h) |
| Taurite inenga Huihuinga | 0.00μSv-500.0mSv |
| Awhe Pungao | 48KeV-1.5MeV ±30% (mō te 137Cs-) |
| Reo | Pātene Hainamana, Ingarihi |
| Te tairongo | 80CPM/μSv (For Co-60) |
| Wae inenga | Whakawhiti nSv/h, pGy/h, mR/h, cps, cpm |
| Tuku Hiko | 1100mAh pākahiko Lithium |
| Tikanga Whakaoho | Mārama, wiri, oro |
| Ahu | 120 x 78 x 27 mm |
| Taumaha Tūemi | 8.1 hekere (0.23 Kirokaramu) |
9. Nga Korero Haumaru Nui
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. Hua Ataata
Watch this official product video for a visual guide on the FNIRSI GC-01 Nuclear Radiation Detector.
Ataata: Kua mutuview of the FNIRSI GC-01 Nuclear Radiation Detector, demonstrating its features and operation.
11. Pūtāhui me te Tautoko
For warranty information and technical support, please refer to the contact details provided with your purchase or visit the official FNIRSI webpae. Puritia to riiki hoko hei tohu mo te hoko.





