Features High Sensitivity Radiation Measurement: Utilizes a highly sensitive Geiger counter tube to measure the total radiation dose over time and calculate the actual radiation strength with high accuracy. Anti-Interference Technology: Easy to operate with strong anti-interference ability for precise and sensitive radiation measurements. Portable and Compact Design: Compact and portable personal radiation detector for convenient on-the-go use. User-Friendly Operation: Controlled by buttons for simple and easy operation with a test accuracy of 0.01μSv/hr and a real-time range of 0‑999.9μSv/hr with minimal error. Battery Level Display: Features a battery level display for convenient usage and timely charging, capable of detecting β rays, γ rays, and X rays for quick radiation intensity detection. Specification: Item Type: Radiation Detector Weight: 146g / 5.15oz Sensor: Geiger counting tube Material: ABS Detectable Types: β rays, γ rays, X rays Energy Range: 20kev-3.0mev≤±30% (137Cs-) Sensitivity: 0.5cps, μGy, hr (Co-60) Measurement Accuracy: 0.01μSv/hr Real Time Range: 0-999.9μSv/hr Accumulation Range: 0-99.99mSv Real Time Error: ≤10 Mean Value Error: ≤3 Measurement Cycle: 30 seconds Battery: 1 x AA Dry battery (shipped without battery) Product Size: Approx. 2.2x18.7cm / 0.9x7.4in Scenario: Since radiation has existed on the earth before the birth of mankind, the living creatures on the earth have been affected by a lot of radioactivity, and the food we usually eat also contains a lot of radioactive substances such as potassium 40. Radon is a general term for naturally occurring radioactive gases. Needless to say, the soil and rocks that make up the earth and the concrete will also release radon into the air. At the same time, they will also be irradiated by cosmic rays, so radiation is everywhere in life, outdoors, indoors, in hospitals, in nuclear power plants and so on, and the difference only lies in the strength of the radiation. Therefore, personal dose detector is used everywhere, it can be used to measure the radiation dose of indoor, outdoor, stone, food and so on. Package List: 1 x Radiation Detector Package List 1 x DIN-Rail Electric Meter 1 x Manual 4 x Accessories