[High sensitivity] The nuclear radiation detector uses professional Geiger counters and advanced tubes as core sensors, which can accurately detect , And X-ray, updated once per second. Detection range of radiation detector: 0.08~50mSv/. [Audible and visual alarm] Regardless of whether the personal radiation detector screen is in a sleep or working state, when the detected radiation dose exceeds the alarm threshold, the Geiger counter dosimeter will emit a loud sound and a flashing screen alarm. Take full care of the health of you and your family. "Low energy consumption - Oled display" has a powerful rechargeable lithium battery built in. The nuclear radiation detector only needs to be for 2-3 hours, and the display can continuously measure for 50 hours after automatically sleeping during work. [Pen holder design] The size of this geiger counter is like a pen, small and convenient. You can clip it anywhere you want. This radiation detector can provide you with 24-hour comprehensive detection. [Wide application range] This radiation dosimeter is widely used in existing ionizing radiation environments, such as , radiation lighting manufacturing enterprises, health, nuclear laboratories, nuclear power plants, building materials, petrochemical industry, geological surveys, etc. It is an perfect choice for families, hospitals, and workplaces. Colour:As Shown 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.