Feature 1High Sensitivity: The nuclear radiation detector uses a Geiger tube sensor, which enhances the sensitivity of detecting radioactive radiation and makes the detection more accurate. 2Real Time Monitoring: Geiger counter radiation detector uses real time monitoring, focusing on radiation radiation detection. 3LCD Display: The Giegermeter radiation detector uses a large LCD screen to display the test results at a glance and the display is clearer. 4Easy to Use: Radiation detector can be started with one key, and it can be tested immediately after power on, no calibration required, and it is very convenient to use. 5Wide Application: Radiation tester is suitable for radioactive materials, ore, marble and other decoration stones, radiology equipment, security inspection and quarantine facilities.Item Type: Nuclear Radiation DetectorMaterial: ABSDetection Rays: X, R, Hard Beta RaysDetector: Energy Compensation GM Tube (Geiger Counter Tube)Measuring RangeDose Rate: 0.011000 Sv/h (maximum: 10 mSv/h)Energy Range: 50 KeV1.5 MeV 30 % (Take 137 Cs I As an Example)Relative Congenital Error: 15% (137 Cs 1 mSv/h)Flexibility: 80 CPM/Sv/h (for Co 60)Alarm Threshold:Dose Rate: Selectable from 0.5, 1.0, 1.5, 2.0, 2.5, 5.0, 10.0, 50.0, 100.0 Sv/h.Dose Rate Unit: Sv/hMetering Display: Display the Dose Rate Per Second; the Protection Alarm Response is Less Than 5 Seconds.Use Environment:Temperature: - 10 + 45Relative Humidity: 95 % (+ 45)Battery Model:2 x AA Battery (Not Included) Package List: 1 x Nuclear Radiation Detector 1 x User ManualNoteShips without battery.