This is a kind of fine quality geiger counter, with high detection sensitivity, especially for environmental radioactivity  monitoring to detect traces of nuclear radiation. Anti-interference ability, capable of reliable operation in complex  electromagnetic environments. Widely used, can be used in the home environment, daily necessities, mineral rocks, decorated stone and other radioactive detection, can also be used for industrial or radioactive leakage detection of imaging equipment. You can have a try.    Features:  Handhold instrument design, built-in rechargeable battery for easy to carry around with you.  Multifunctional design, onboard digital color screen, with real-time radiation value bar graph display function.  With detection sensitivity, especially for environmental radioactivity  monitoring to detect traces of nuclear radiation.  Use built-in probe type, the effective protection of the probe is not damaged.  You can quickly determine the radiation situation surrounding environment, to quickly locate the exact location of radiation sources.  Anti-interference ability, capable of reliable operation in complex  electromagnetic environments.  Wide applications, can be used in the home environment, daily necessities, mineral rocks, decorated stone and other radioactive detection, electric appliance electromagnetic radiation detection.    Specifications:  Name: Geiger Counter  Model: Air-02  Material: ABS  Color: black, white (optional)  Battery: 1 * 5V, 5000mAh battery (included)  Input: 5V, 1A  Package size: 160 * 66 * 31mm / 6.30 * 2.60 * 1.22in  Package weight: 195g / 6.88ounce    Packing List:  1 * Geiger Counter