Features 1、High sensitivity, wide measuring range, has a long service life. 2、Smaller body, larger screen, clearer measurement data and easier operation. 3、Can be applied to material inspection, environmental test, radiology conservation, radiopharmaceutical screening, etc. 4、With mute, alarm, particle sound selection button, test, mean value reset retest selection button, backlight can be turned on or off. Specification The natural environment in which we live has a certain amount of radiation, real-time data will fluctuate within a certain range, and the daily use of nuclear radiation detector helps to refrain radiation hazards in daily life. Features: High sensitivity, wide measuring range, has a long service life. Smaller body, larger screen, clearer measurement data and easier operation. Can be applied to material inspection, environmental test, radiology conservation, radiopharmaceutical screening, etc. With mute, alarm, particle sound selection button, test, mean value reset retest selection button, backlight can be turned on or off. Specifications: Material: ABS Color: black Model: BR-9B Screen size: 57 * 43mm / 2.2 * 1.7in Sensor type: energy compensation type GM tube Detectable types: Beta, Gamma, X-ray Energy range: 20kev~3.0mev≤±30%(137Cs-) Sensitivity: 80cpm/μsv/(Co-60) Test accuracy: 0.01μsv/h Real-time range: 0-99.99μsv/h Cumulative range: 0-99.999msv Real-time error: ≤10% Mean error: ≤3% Battery: 3 * AA 1.5V battery or 3 * 1.2V rechargeable battery (not included) Charging: USB 5V 2A input Charging time: ≥4 hours Item size: 105 * 70 * 30mm / 4.1 * 2.8 * 1.2in Item weight: 106g / 3.7ounce Package size: 150 * 100 * 55mm / 5.9 * 3.9 * 2.2in Package weight: 122g / 4.3ounce Packing List: 1 * Nuclear Radiation Detector 1 * User Manual Package List 1 * Nuclear Radiation Detector 1 * User Manual