Description Features: 1. It adopts a compact and portable user interface, which is simple, clear, easy to use and user-friendly. 2. Geiger radioactivity detector has the characteristics of wide measuring range and long service life. It can be used for radiation detection and monitoring in indoor and outdoor and other similar environments. 3. The nuclear radiation monitor responds quickly to radiation, and will alarm in time in high-risk environments. The instrument enjoys a high flexibility and can measure the environmental background. 4. Widely applied in the individual safety protection monitor and radioactive indication for work personnel in the following fields: nuclear power plant, accelerator. 5. This nuclear radiation detector is equipped with multiple charging methods and can be operated via USB port and battery for convenience and ease of use. Daily use of the radioactive radiation detector helps to avoid radiation hazards in daily life. Notice: *Actual color may be slightly different from the image due to different monitor and light effect *Please allow 1-3cm deviation due to manual measurement Description: Package Size: 195*95*35mm/ 330*220*90mm Operating temperature: 0-50 Operating humidity: 10%RH-80%RH relative humidity Nuclear radiationResponse time3s Power supply Built-in 3.7V lithium battery. Please use a standard safe 5V-1000mA charger to charge. includes: 1 set x Radiation Detector