Features LOW ENERGY CONSUMPTION: Equipped with a powerful rechargeable lithium battery, the nuclear radiation detector only needs to be charged for 2 to 3 hours. After automatic sleep during operation, the monitor can continuously measure for 24 hours. HIGH SENSITIVITY: Nuclear radiation detector uses professional geiger counters and advanced tubes as the core sensors, which can accurately detect β, γ and X ray, updated once per second. The detection range of the radiation detector is 0.08 to 9999mSv/h. SOUND AND LIGHT ALARM: Regardless of whether the 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 clear sound and a flashing screen alarm. COMPACT AND CONVENIENT: You can carry the geiger counter anywhere you want to explore. This radiation detector can provide you with 24 hour comprehensive detection. WIDE APPLICATION: Radiation dosimeter is widely used in existing ionizing radiation environments, such as home decoration, radiation production enterprises, health, nuclear laboratories, nuclear power plants, building materials, petrochemicals. Specification: Item Type: Nuclear Radiation Detector Material: ABS Battery: Polymer battery x 1 Battery Capacity: 400mAh (shipped with built in battery) Detection Count: 48mm Geiger counter tube Measurement Range: 00.08 μ Sv/h to 9999 μ Sv/h Response Speed: Operate within 10 seconds, arrive a stable value within 2 minutes Refreshing Frequency: 1 second per time Working Environment: -10 to 50 ℃; Display: 0.96 inch TFT HD LCD display screen Humidity: Less than or equal to 95% RH without condensation Detection Ray Type: γ ray, X ray, β ray Range: 15 to 24 hours Suitable for Various Scenarios: Home, hospitals, nuclear power plants, laboratories, processing enterprises, metallurgy, etc. Package List: 1 x Tester  1 x USB Cable  1 x Manual  Package List 1 x Tester 1 x USB Cable 1 x Manual