Features: *1. NUCLEAR RADIATION DETECTOR - Radiation detector meter uses a professional Geiger counter and an energy-compensated GM counter tube as the core sensor for accurate detection of beta, gamma and x-rays. Fast detection speed, strong anti-interference capability, high sensitivity, wide measuring range and long service life. Detection range: 0.08uSv/h~9999uSv/h. Radiation dose data is updated in real-time per second. *2. SMART ALARM - Radiation detector can be set to any cumulative alarm value and dose rate alarm value. When the radiation value exceeds the set value, the radiation dosimeter will automatically emit a loud sound and a flashing screen for alarm, avoiding the risk of radiation in daily life. The main technical specifications of the personal radiation detector are following international standards. *3. APPLICATION AREAS - Radiation dosimeter is used in the living environment: Food, water, imported goods, cosmetics, stone, and decoration materials. Medical environment: radiology, CT, CR, DR, radionuclides, pharmaceuticals, etc. Industrial environment: Nuclear power plants, metallurgy, waste recycling, metal casting, etc. Personal protection: Regulatory, customs, medical, maternal, and occupational health. *4. LOW ENERGY CONSUMPTION TFT DISPLAY - The digital Geiger counter has been selected with a powerful microprocessor with a TFT display for clear page measurement data and to make operation easier. With the built-in 500mAh rechargeable lithium battery, the nuclear radiation detector can measure continuously for 10-18 hours after only 1 hour of charging. *5. SETTABLE LIMIT VALUE - Support vibration, LED flashing lights, buzzer, UI theme color change reminders when the test result exceeds the setting limit. Description: *1. Detection and Counting: 48 mm Geiger counter tube *2. Measuring Range: 0.08 usv9999 usv *3. Measurement Accuracy: -17% ~+25% based on 137 cesium . *4. Working Environment: -20 ~ 50; 95%RH without condensation *5. Battery Capacity: 500 mAh *6. Battery Life: 10 to 18 hours *7. Charging Time: 1 hour *8. Charging Method: magnetic cable *9. Product Size: 15 * 39 * 110mm *10. Body Material: ABS *11. Screen Size: 2.0 inch TFT color screen(240*284px) *12. Instruction Language: Chinese, English, Japanese, Korean, German, Russian Package Includes: 1 x Geiger Counter 1 x Hanging Rope 1 x Charging Cable 1 x Instruction