Portable radiation detector, using energy-compensated counter detector and multi-function microprocessor, with sensitive detection and accurate value, suitable for all nuclear-related environments such as industry, medicals, nuclear power, and family, X/γ/high-energy β-ray radiation dose testing. Features: Handheld ray radiation dose alarm instrument can comprehensively detect X-rays, γ-rays and hard β-rays, with high sensitivity, quick radiation response and more accurate values. User-friendly design, the alarm thresholds of dose rate and cumulative dose can be modified arbitrarily, built-in memory, even if the power is cut off, the data will not be lost. Intelligent protection, triple alarm, dose over-threshold alarm/accumulated dose over-threshold alarm/counter tube blockage alarm. Sound and light dual alarm mode to meet different use environments. With statistical measurement function, it can count the cumulative dose within a specific time, and the statistical time can be arbitrarily set between 0-99 hours. With a USB cable, it can be connected to a computer, supports data export function, and can be used for dose management system software to read, analyze and manage measurement data. With high-quality ABS housing, the detector has nice durability, small and lightweight, with quick clip, easy to carry. LCD digital display with backlight for easy viewing. Wide applications, the radiation detector can be used in living environment, medicals environment (medicals equipment and radionuclides) and industrial environment (nuclear radiation and industrial radionuclides). Specifications: Color: Black Material: ABS Detector: Energy-Compensated Counter Cumulative Dose Range: 0.00uSv-999.9Sv Dose Rate Range: 0.00uSv/h-10mSv/h Relative Error: