Features 【MULTIPLE FUNCTIONS & REAL-TIME MONITORING】This portable nuclear radiation detector features real-time dose rate, average dose rate, cumulative dose, and trend chart functions, providing comprehensive radiation monitoring with sound and light alarms for immediate alerts. 【DETECTION ITEMS & WIDE APPLICATION】Capable of detecting X-ray, γ-ray, and β-ray, this Geiger counter is ideal for testing radiation levels in stones, jade, minerals, and environments like homes, workplaces, and irradiation facilities. 【CLEAR SCREEN & HIGH RESOLUTION】Equipped with a 128x64 OLED screen, this digital dosimeter ensures clear and intuitive readings, allowing for accurate and precise radiation measurements in various conditions. 【HIGH EFFICIENCY & FAST RESPONSE】Using a M4011 J321 Geiger tube and an ARM processor, this radiation detector offers high sensitivity and fast , ensuring and efficient radiation detection. 【PORTABLE & USB RECHARGEABLE】Designed for portability and convenience, this USB rechargeable Geiger counter is lightweight and easy to carry, making it for on-the-go radiation testing and safety monitoring. 1. MULTIPLE FUNCTIONS: The nuclear radiation detector adopts sound and light dual indication, and has real time dose rate, average dose rate, cumulative dose rate, and trend chart functions. 2. DETECTION ITEMS: This portable Geiger counter can detect X ray, γ ray and β ray, suitable for radiation dose detection of stone, jadestone, and various unknown minerals. 3. CLEAR SCREEN: The nuclear radiation detector adopts organic light emitting diode screen with a 128x64 resolution, which is clear and intuitive, ensuring accurate reading. 4. HIGH EFFICIENCY: Adopting M4011 J321 Geiger counter tube, the tube wall is sprayed with tin oxide as the cathode, with high sensitivity, for ARM processor, fast speed. 5. APPLICABLE RANGE: The measurement range is 0‑500usv/h, widely used in where ionizing radiation exists, such as home radiation, irradiation processing enterprises, and hygiene. Spec: Item Type: Nuclear Radiation Detector Material: PCB Measurement Range: 0-500usv/h Life: ≥10⁹ Pulses How to Use: Usage: Test the Geiger tube, the detection device of the detector, close to the radiation target. According to the law that the radiation strength is inversely proportional to the square of the distance, the greater the distance is, the more serious the radiation attenuation is, so the test needs to test the Geiger counter tube, the detector, close to the radiation target. A small removable window is added to the Geiger tube to solve the problem of radiation attenuation due to the housing and distance. PackageList: 1 x Nuclear Radiation Detector 1 x USB Cable Notice: Turn off the instrument when not in use. Package List 1 x Nuclear Radiation Detector 1 x USB Cable