DeWin GC-03

DeWin GC-03 Multifunction Radiation Detector User Manual

Model: GC-03 | Brand: DeWin

1. Introduction

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.

DeWin GC-03 Multifunction Radiation Detector showing its 3-in-1 capabilities and key 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. Key Features

  • 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.
  • Curve Recording Mode: 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.
  • Long-lasting 1500 mAh Battery: Integrated high-capacity battery provides over 12 hours of standby time and is conveniently rechargeable via a Type-C port.
DeWin GC-03 detector showing visual, audible, and vibration alarm modes.

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

DeWin GC-03 detector used for nuclear, electric, and magnetic field detection in various environments.

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. Initial Setup

3.1 Charging the Device

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 Power On/Off

  • To power on: Press and hold the power button (usually located on the side or top) until the screen illuminates.
  • To power off: Press and hold the power button until the device shuts down.

3.3 Basic Settings

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. Operating Instructions

4.1 Mode Selection

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.

DeWin GC-03 detector showing rotary knob control and various measurement displays.

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 Taking Measurements

  • Electric Field: Select EF mode. Hold the device in the area you wish to measure. The screen will display the electric field strength in V/m.
  • Magnetic Field: Select MF mode. Hold the device in the area you wish to measure. The screen will display the magnetic field strength in µT.
  • Nuclear Radiation: Select Nuclear mode. The device will continuously monitor for α, β, γ, and X-rays. Readings will be displayed in µSv/h.

4.3 Alarm Settings

To adjust alarm thresholds:

  1. Navigate to the 'Alarm Settings' menu using the rotary knob.
  2. Select the desired field (Electric, Magnetic, or Nuclear) to set its alarm threshold.
  3. Adjust the value using the navigation buttons and confirm with 'OK'.
  4. 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:

  1. In Nuclear Radiation mode, navigate to the 'Curve Recording' option.
  2. Activate recording. The device will plot real-time radiation values on a graph.
  3. To review past recordings or alarm history, access the 'History' menu. The device stores up to 50 records of limit exceedances.

4.5 Operational Demonstration Video

Video: This video demonstrates the key functions and user interface of the DeWin GC-03 Multifunction Radiation Detector, including navigation and measurement display.

5. Maintenance

5.1 Cleaning

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 Battery Care

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.
  • Avoid fully discharging the battery frequently.
  • Store the device in a cool, dry place if not used for extended periods.

6. Troubleshooting

ProblemPossible CauseSolution
Device does not power onLow battery; Power button not pressed long enoughCharge the device; Press and hold the power button for 3-5 seconds
Inaccurate readingsInterference from other electronic devices; Device not calibratedMove away from other electronics; Refer to advanced settings for calibration options (if available) or contact support
Alarm not soundingAlarm volume too low; Alarm threshold not set correctly; Alarm disabledCheck volume settings; Adjust alarm thresholds; Ensure alarm is enabled in settings
Screen is dim or unreadableBacklight setting too low; Low batteryAdjust backlight brightness in settings; Charge the device

7. Specifications

FeatureDetail
ModelGC-03
Detection TypesElectric Field (EF), Magnetic Field (MF), Nuclear Radiation (α, β, γ, X-rays)
Nuclear Radiation Range0.01µSv/h to 999.99µSv/h
Electric Field Range1V/m to 1999V/m
Magnetic Field Range0.01µT to 99.99µT
Display2.4-inch High-Resolution Color Screen with adjustable backlight
Alarm ModesAudible, Visual (LED flash), Vibration
Battery1500 mAh rechargeable (Type-C charging)
Standby TimeOver 12 hours
Dimensions (L x W x H)16 x 14 x 3.99 cm (approx. 138mm x 63mm x 32mm)
Weight218 grams
Manufacturer ReferenceRIYAREEDI-GS99549
DeWin GC-03 detector with dimensions labeled: 138mm height, 63mm width, 32mm depth.

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

Comparison table of DeWin GC-01, GC-02, and GC-03 models, highlighting GC-03's superior features.

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. Warranty Information

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. Support

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 website or on the product packaging.

Online resources and FAQs may also be available on the manufacturer's support pages.

Copyright © 2026 DeWin. All rights reserved.

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