[High Sensitivity] The nuclear radiation detector uses a professional Geiger counter and an advanced tube as the core sensor, which can accurately detect gamma rays and X-rays, with updates every second. Radiation detector detection range: 0.08 ~ 50 mSv/h. [Sound and Light Alarm] Regardless of whether the screen of the personal radiation detector is in sleep or active mode, when the detected radiation dose exceeds the alarm threshold, the device will emit a loud audible alarm and a flashing screen alert to protect you and your family. [Low Energy OLED Display] Built-in powerful rechargeable lithium battery; the nuclear radiation detector only needs to charge for 23 hours and can operate continuously for up to 50 hours after full charge. [Pen Folder Design] The size of this Geiger counter is similar to a pen, compact and portable. It can be clipped to any desired location. This radiation detector provides 24-hour continuous monitoring. [Wide Application Scope] This radiation dose meter is widely used in environments with ionizing radiation, such as home environments, radiation-related manufacturing facilities, healthcare, regulatory inspection, nuclear power plants, building materials, petrochemicals, and geological surveys. Ideal for families, hospitals, and workplaces. Material: Plastic Color: Black Package Contents: 1 x Geiger Counter Only the above package content is included; other items are not included. Note: Lighting reflections and different displays may cause slight variations in the color shown in the image compared to the actual item. Measurement error allowance is +/- 13 cm.