Feature: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 protection, 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.5.If there is any problem with the product, please feel free to contact us, we will give you a satisfactory answer within 24 hours.Description:Name: XR1 BR-9B Ionizing Radiation Geiger Counter TesterMaterial: ABSModel: BR-9BScreen size: 57 * 43mm / 2.2 * 1.7inSensor type: energy compensation type GM tubeDetectable types: Beta, Gamma, X-rayEnergy range: 20kev~3.0mev30%(137Cs-)Sensitivity: 80cpm/sv/(Co-60)Test accuracy: 0.01sv/hReal-time range: 0-99.99sv/hCumulative range: 0-99.999msvReal-time error: 10%Mean error: 3%Battery: 3 * AA 1.5V battery or 3 * 1.2V rechargeable battery (not included)Charging: USB 5V 2A inputCharging time: 4 hoursNote:Please allow 1-3cm difference due to manual measurement.Due to light and screen difference, the item's color may be slightly different from the pictures.