Function: 1. SENSITIVITY AND ACCURACY: Use Geiger Mueller tube counter to measure nuclear radiation, induction is sensitive and accuracy of measurement results is guaranteed 2. WITH ALARM: Combined radiation detection Beta, Gamma and X. Provides audible and visual alarms when radiation is detected 3. FLEXIBLE CHARGING: Includes rechargeable battery, can be charged via USB or car charger, very convenient 4. SMALL AND LIGHTWEIGHT: Pen type design, easy to hold and carry, detection range from 0,05 uSv–50 mSv 5. APPLICABLE SCENARIOS: The radiation level of any object or any environment can be detected at any time, np. detection of radiation of toys, antiques, building materials, furniture, decoration, food, etc. Specification: Item Type: Nuclear Radiation Detector Material: ABS Battery: 1 x Lithium Polymer Battery, Battery Capacity: 150 mAh Detection Range: 0,05uSv-50mSv Operating environment: temperature -20 ℃ - 50 ℃; humidity Battery life: 50 hours (continuous measurement, screen sleep) Charging time: 2-3 hours Charging interface: TYPE C interface (green light is always on when charging, completely off) List of packages: 1 x Detector 1 x Charging Cable 1 x User Manual