Feature: 1. 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/hr. 2. 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. Take full care of your and your family's health. 3. 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. 4. 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. 5. 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, geological surveys, etc. An ideal choice for families, hospitals, and workplaces. 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