1.FAST AND WIDE: The radiation dose alarm instrument has a high sensitivity Geiger technology tube as a detector, which is mainly used to monitor X, and hard radiation in various radioactive workplaces, with quickly response and wide measurement range 2.POWER OFF MEMORY: The geiger counter display the current and cumulative dose rates in the workplace, and the calendar, time and accumulated data are stored permanently when the battery is changed 3.WIDE APPLICATION: Nuclear radiation detector is widely used in nuclear power plants, accelerators, steel, chemical industry, isotope applications, industrial X gamma, radioactive stone, radioactive medical treatment, cobalt source therapy, y radiation, 131, Personnel in the field of radioactive laboratories, environmental monitoring around nuclear facilities, etc., shall conduct people monitoring and radioactive warning 4.MEASUREMENT DISPLAY: The radioactive dosimeter dose rate is displayed every second, and the protective alarm response is less than 5 seconds