Features 1、SENSITIVE AND ACCURATE: Use the Geiger Mueller tube counter to measure nuclear radiation, the induction is sensitive, and the accuracy of the measurement results is guaranteed 2、WITH ALARM: Beta, Gamma and X ray combined radiation detection. Provides audible and visual alerts if 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 0.05uSv‑50mSv 5、APPLICABLE SCENARIOS: The radiation level of any object or any environment can be detected at any time, such as radiation detection of toys, antiques, building materials, furniture, decoration, food, etc. Specification Item Type: Nuclear Radiation Detector Material: ABS Battery: 1 x Polymer lithium battery, Battery Capacity: 150mAh Detection Range: 0.05uSv-50mSv Working Environment: Temperature -20℃~50℃; humidity <95%RH without condensation Battery Life: 50 Hour (continuous measurement, screen sleep) Charging Time: 2~3 Hour Charging Interface: TYPE C interface (green light is always on when charging, full off) Package List 1 x Detector 1 x Charging Cable 1 x User Manual