DeWin GC-03
DeWin GC-03 Multifunction Radiation Detector User Manual
Model: GC-03 | Brand: DeWin
1. Introducción
The DeWin GC-03 is a versatile 3-in-1 detector designed for the simultaneous measurement of electric fields, magnetic fields, and nuclear radiation. This device provides comprehensive environmental monitoring with a user-friendly interface and robust alarm features.

Image: The DeWin GC-03 detector, highlighting its 3-in-1 functionality for electric, magnetic, and nuclear radiation detection, along with features like 1500mAh battery and alarm modes.
2. Características principales
- Multifunctional 3-in-1 Detection: Measures electric fields (1V/m to 1999V/m), magnetic fields (0.01µT to 99.99µT), and nuclear radiation (0.01µSv/h to 999.99µSv/h).
- Adjustable Automatic Alarm: Features a customizable alarm threshold with triple alerts (audible, visual, vibrating) for immediate notification of hazardous conditions.
- Modo de grabación de curvas: Displays real-time radiation variations over a cycle and stores up to 50 records of limit exceedances for later analysis.
- 2.4-inch Backlit Color Screen: High-resolution display with adjustable backlight ensures clear visibility of data in various lighting conditions.
- Batería de larga duración de 1500 mAh: Integrated high-capacity battery provides over 12 hours of standby time and is conveniently rechargeable via a Type-C port.

Image: The DeWin GC-03 detector illustrating its three customizable alarm modes: visual, red LED flash, and audible alerts.

Image: Applications of the DeWin GC-03, demonstrating its use for detecting nuclear radiation, electric fields (near laptops and microwaves), and magnetic fields (near refrigerators).
3. Configuración inicial
3.1 Carga del dispositivo
Before first use, fully charge the GC-03 detector using the provided Type-C USB cable. Connect the cable to the device's Type-C port and a compatible USB power adapter (not included). The battery indicator on the screen will show charging status.
3.2 Encendido y apagado
- To power on: Press and hold the power button (usually located on the side or top) until the screen illuminates.
- Para apagar: mantenga presionado el botón de encendido hasta que el dispositivo se apague.
3.3 Configuración básica
Upon powering on, you may need to adjust basic settings such as language, date, and time. Navigate through the menu using the rotary knob and selection buttons. Refer to the 'Operating' section for detailed navigation instructions.
4. Instrucciones de funcionamiento
Selección de 4.1 modos
The GC-03 features a smooth rotary knob for easy navigation and mode selection. Rotate the knob to switch between Electric Field (EF), Magnetic Field (MF), and Nuclear Radiation detection modes. Press the 'OK' button to confirm your selection.

Image: The DeWin GC-03's intuitive rotary knob control, demonstrating how to switch between different measurement displays for radiation, electric, and magnetic fields.
4.2 Toma de medidas
- Campo eléctrico: Select EF mode. Hold the device in the area you wish to measure. The screen will display the electric field strength in V/m.
- Campo magnético: Select MF mode. Hold the device in the area you wish to measure. The screen will display the magnetic field strength in µT.
- Radiación nuclear: Select Nuclear mode. The device will continuously monitor for α, β, γ, and X-rays. Readings will be displayed in µSv/h.
4.3 Configuración de alarma
Para ajustar los umbrales de alarma:
- Navigate to the 'Alarm Settings' menu using the rotary knob.
- Select the desired field (Electric, Magnetic, or Nuclear) to set its alarm threshold.
- Adjust the value using the navigation buttons and confirm with 'OK'.
- When a measurement exceeds the set threshold, the device will activate audible, visual (screen flash), and vibration alarms.
4.4 Curve Recording
The curve recording mode allows you to visualize changes in radiation levels over time. To activate and review:
- In Nuclear Radiation mode, navigate to the 'Curve Recording' option.
- Activate recording. The device will plot real-time radiation values on a graph.
- Para volverview past recordings or alarm history, access the 'History' menu. The device stores up to 50 records of limit exceedances.
4.5 Vídeo de demostración operativa
Video: This video demonstrates the key functions and user interface of the DeWin GC-03 Multifunction Radiation Detector, including navigation and measurement display.
5. Mantenimiento
5.1 Limpieza
Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or solvents, as these can damage the screen or casing. Ensure no liquids enter the device.
5.2 Cuidado de la batería
The GC-03 is equipped with a built-in 1500 mAh rechargeable battery. For optimal battery life:
- Recharge the device when the battery indicator is low.
- Evite descargar completamente la batería con frecuencia.
- Guarde el dispositivo en un lugar fresco y seco si no lo utiliza durante períodos prolongados.
6. Solución de problemas
| Problema | Posible causa | Solución |
|---|---|---|
| El dispositivo no enciende | Batería baja; el botón de encendido no se presionó el tiempo suficiente | Cargue el dispositivo; mantenga presionado el botón de encendido durante 3 a 5 segundos |
| Lecturas inexactas | Interferencia de otros dispositivos electrónicos; Dispositivo no calibrado | Move away from other electronics; Refer to advanced settings for calibration options (if available) or contact support |
| La alarma no suena | Alarm volume too low; Alarm threshold not set correctly; Alarm disabled | Check volume settings; Adjust alarm thresholds; Ensure alarm is enabled in settings |
| La pantalla está oscura o ilegible | Backlight setting too low; Low battery | Adjust backlight brightness in settings; Charge the device |
7. Especificaciones
| Característica | Detalle |
|---|---|
| Modelo | GC-03 |
| Tipos de detección | Electric Field (EF), Magnetic Field (MF), Nuclear Radiation (α, β, γ, X-rays) |
| Nuclear Radiation Range | 0.01µSv/h to 999.99µSv/h |
| Rango de campo eléctrico | De 1 V/m a 1999 V/m |
| Rango de campo magnético | 0.01µT to 99.99µT |
| Mostrar | 2.4-inch High-Resolution Color Screen with adjustable backlight |
| Modos de alarma | Audible, Visual (LED flash), Vibration |
| Batería | 1500 mAh rechargeable (Type-C charging) |
| Tiempo de espera | Más de 12 horas |
| Dimensiones (L x An x Al) | 16 x 14 x 3.99 cm (aprox. 138 mm x 63 mm x 32 mm) |
| Peso | 218 gramos |
| Referencia del fabricante | RIYAREEDI-GS99549 |

Image: Dimensions of the DeWin GC-03 detector, showing its compact size.

Image: A comparison chart detailing the features of the GC-01, GC-02, and GC-03 models, emphasizing the GC-03's comprehensive detection capabilities and battery life.
8. Información de garantía
The DeWin GC-03 Multifunction Radiation Detector comes with a standard manufacturer's warranty. Please refer to the product packaging or the official DeWin website for specific warranty terms and conditions, including duration and coverage details. Keep your purchase receipt as proof of purchase for any warranty claims.
9. Soporte
For technical assistance, troubleshooting not covered in this manual, or general inquiries, please contact DeWin customer support. Contact information can typically be found on the official DeWin websitio o en el embalaje del producto.
Los recursos en línea y las preguntas frecuentes también pueden estar disponibles en las páginas de soporte del fabricante.
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