Describe This product is a high-sensitivity radiation dose alarm instrument, which is mainly used for monitoring X-rays, IT, and B-rays. It has the characteristics of high sensitivity and accurate measurement. Widely used in the existing radiation environment, human radiation dose monitoring and protection environment, such as petrochemical industry, general geological inspection, scrap steel, industrial error detection, etc.. Specification Sensor: GM counter Measuring range: 0.05USV ~50mSv Measurement accuracy: -17%-+25% based on 137Cs Y Battery life: 20 days (continuous measurement, no particle sound) Charging interface: Type-C interface (when charging, the green light is steady on, full of) Alarm response time :