GC-03 is a multifunctional radiation detector, a professional instrument for measuring nuclear radiation, mainly used in various occasions such as home, office, car, outdoor environment, etc. It uses a 2.4-inch high-definition color screen and supports real-time monitoring of nuclear radiation, electric field strength, magnetic field strength, etc. The meter supports three alarm modes: sound, vibration, and light. Key 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 Basic Parameters: Model GC-03 Display Screen Size 2.4-inch color screen Backlight Brightness Adjustable Power Supply TYPE-C (5V/1A) Battery 1500mAh Languages 中文, English Product Size ≈138×63×32mm Net Weight ≈141g Measurement Parameters: Nuclear Radiation Range: 0.01μSv/h-999.99μSv/hAccuracy: 0.01μSv/h Electric Field Range: 1V/m-1999V/mAccuracy: 1V/m Magnetic Field Range: 0.01μT-99.99μTAccuracy: 0.01μT Radiation Power 0.2-1000mW/m² Nuclear Radiation Detection: Detection Radiation Type Ionizing radiation (gamma rays, etc.) Detector Energy compensation GM tube (Gege counter tube) Dose Current Rate 0.00-10000μSv/h (10mSv/h) Cumulative Dose Equivalent 0.00μSv-500.0mSv Energy Range 48keV-1.5MeV ≤ ±30% (for 137Cs-) Sensitivity 80CPM/μSv Dose Unit μSv/h、uGy/h、mR/h、CPS、CPM Alarm Mode Light, vibration, sound Package List: ◉ GC-03 Host × 1◉ Packing Box × 1◉ Data Cable × 1◉ User Manual × 1