Feature 1Smart Testing: Supports various units, the Geiger tester can be used to test X ray, ray, ray, etc., meeting your varied working needs. 2Reliable Work: Enables real time display on dose rate and cumulative dose value, 8 kinds of alarm thresholds setting and many alarm modes. 3High Accuracy: High in sensitivity and accuracy, the dosimeter monitor also ensures quick response to radiation, very practical and reliable. 4Practical Use: Wide in measurement range, the Geiger counter enables broad application in hospital, construction size, inspection and more. 5Easy Carrying: Comes with a light weight and a compact size as well, the nuclear radiation detector can be conveniently carried to outdoor work.Item Type: Nuclear Radiation DetectorBattery: 2 x AAA 800mAh alkaline dry battery, shipped with supporting battery. Power Supply Mode: Can be powered by 2pcs or 4pcs AAA battery. Detection Ray Type: , X and radial. Detector: Energy compensation GM double tube, Geiger counter tube. Dose Equivalent Rate: 0.08~10000 Sv/h(10mSv/h)Accumulated Dose Equivalent: 0.00 Sv~500.0mSvEnergy Range: 50keV~1.5MeV 30% (for 137Cs -)Language: Japanese or English, arbitrary switch. Relative inherent error: 8% (137CS 1mSv/h)Sensitivity: 80CPM/ Sv/h (for C0-60)Dose Rate Unit: Sv/h Gy/h, mR/h arbitrary switching. Alarm Mode: Sound, light. . Package List1 x Nuclear Radiation Detector1 x Bracket2 xBattery