Feature:1. Detection Range: Using professional Geiger counter and advanced Geiger tube as core sensor for precise detection , and X ray, with a radiation detection range of 0.05SV50mSv.2. Sound Light Alarm: Whether the screen is in sleep or working mode, when the detected radiation dose exceeds the threshold, the detector will emit a loud sound and a flashing alarm.3. Low Consumption: The nuclear radiation detector has a built in 1800mAh battery, which automatically sleeps during operation, and the display can continuously measure for 20 days.4. Clear Display Screen: The radiation detector adopts an organic light emitting diode display screen, which is clear and intuitive, and allows for real time observation of measurement data.5. Wide Applications: Widely used in power radiation environments, such as home decoration, nuclear laboratory, nuclear power plant, building material, petrochemical, geological survey, etc.Specification:Item Type: Nuclear Radiation DetectorMaterial: ABSBattery: 1 x 1800mAh Polymer Battery (built in battery)Sensor: Geiger TubeMeasurement Range: 0.05SV-50mSvAlarm Method: Sound Light AlarmAlarm Threshold Difference: -17%-25%Detection Ray: X Battery Life: 20 Days (without particle sound).Package List:1 x Detector1 x Storage Bag1 x USB Cable1 x Hanging Rope1 x User Manual