Feature: 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, yellowMaterial: PlasticDimensions: 13.5x7x3.8 cm / 5.31x2.76x1.50 inches.Detectable rays: beta gamma raysSensor Type: GM TubeEnergy range: 50kev-1.5mev less than 30%Relative inherent error of less than or less than 10%Sensitivity: 80cpm/USV/co-60Maximum dose equivalent rate: 99.99usv /HUse 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 Note: 1. The power button ON will automatically turn on and display the real-time detection interface.2. Long press to zero current consumption after shutdown.3. The triangle start key is used to measure the average value. In the natural environment, the background radiation fluctuates within a certain range.