Characteristic:1. High sensitivity, wide measuring range, long service life.2. Can be applied to material inspection, environmental testing, radiological protection, radiopharmaceutical screening, etc.3. Compact and portable, the operation interface is simple and clear, easy to use.4. Daily use of a nuclear radiation detector helps avoid radiation risks in daily life.5. This Geiger counter radiation detector detects beta, gamma and X-rays almost instantly to provide you with the most accurate knowledge at fast speeds.6. Using a sophisticated GM tube as a basic sensor.Specifications:Condition: 100% Brand NewItem Type: Nuclear Radiation DetectorMaterial: ABSColor: white, black (optional)Size: about 135x70x40mm / 5.3x2.8x1.6inWeight: approx. 163g / 5.7ozDetectable types: , , X-RaySensor type: GM tubeEnergy range: 20kev ~ 3.0mevs 30% (137Cs-)Relative intrinsic error: 10%Sensitivity: 80cpm / SV / Co-60The maximum dose equivalent rate: 99.99 V/hAmbient temperature: -25 ~ +45Relative humidity: 95%+45Power Supply: 2 AA batteries (not included) or USB cable (not included)Voice source: real particle sound / alarm sound / muteAlarm threshold: 0.5 / 1.0 / 2.0 / 5.0Power consumption: 0.15 WPackage list:1 x Nuclear Radiation Detector1 x Instruction ManualNoticed :1. Please allow 1-2cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.