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.