Product selling points:1. Use high-quality materials with guaranteed quality2. High sensitivity, wide measurement range, and long service life3. Compact body, large screen display, clearer measurement data, and simpler operation4. Automatically save cumulative dose, built-in memory, and can be saved for a long time when power is off5. Can be applied to material inspection, environmental testing, radiation protection, radioactive drug screening, etcParameters:Material: ABSColor: black, whiteScreen size: 57 * 43mm/2.2 * 1.7inSensor type: GM type energy compensation tubeDetectable types: Beta, Gamma, X-RayCapability range: 20kev~3.0mev 30% (137Cs -)Sensitivity: 80cpm/usv/(Co-60)Test accuracy: 0.01 Sv/hReal time range: 0-99.99 Sv/hAccumulation: 0-99.999msvReal time error: 10%Average error: 3%Battery: 3 * AA15V or 3 * 1.2V rechargeable battery (not included)Charging: USB input 5V 1ACharging time: 4 hoursSize: 106 * 70 * 30mm/4.17 * 2.8 * 1.2inPackage List:Nuclear radiation detector*