Features 1、1. Wide range of uses: High sensitivity nuclear radiation detector, designed to detect all radioactive objects: marble, stone, floor, food, wood, uranium ore. 2、2. Operation: Hand-held Geiger counter on/off, start, average selection button, easy to operate. 3、3. Easy to use: Geiger counter, smaller body, bigger screen, clearer measurement data and easier operation. 4、4. Application: The nuclear radiation detector can be used in material inspection, environmental testing, radiation protection, radiopharmaceutical screening, etc. 5、5. Function: The digital nuclear radiation detector has a built-in GM tube sensor, which can test beta and gamma rays. Specification Color: White, black, yellow Material: Plastic Dimensions: 13.5x7x3.8 cm / 5.31x2.76x1.50 inches. Detectable rays: beta gamma rays Sensor Type: GM Tube Energy range: 50kev-1.5mev less than 30% Relative inherent error of less than or less than 10% Sensitivity: 80cpm/USV/co-60 Maximum dose equivalent rate: 99.99usv /H Use ambient temperature -25 +45 relative humidity less than 95% Power supply: 2 AA batteries (not included), when long-term testing is required, it can be powered through the USB interface. Package List 1* Nuclear Radiation Detector