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. Interference resistance 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. Name: Geiger Counter Model: Air-02 Battery: 1 * 5V, 2500mAh battery (included) Input: 5V, 1A color:White Material:plastic Package Contents: 1 x Geiger Counter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.