Feature 1Visual, Audible Alarm: The detector can provide audible and visual alarms if radiation is detected. And the alarm value can be set. 2Sensitive Operation: This detector adopts GM counter, GM counter sensor, which ensures a premium detection sensitivity. 3Large Battery Capacity: Equipped with a 2000mAh large capacity rechargeable battery, this detector will no longer need to replace the battery frequently, which is more convenient and green. 4Wide Application: This detector can detect nuclear radiation radioactivity and X ray radial X ray, NDT, radiation of nuclear industry site and nuclear power plant, CT radiation of hospital, iodine 131, etc. 5Easy Carrying: Comes with a compact size and a light weight as well, you can easily take this detector with you to help with your work.Item Type: Radiation DetectorMaterial: ABSBattery: 1 x 2000mAh 18650 lithium ion battery (shipped with built in battery)Detection Ray Type: , X and radialDetector: Energy compensation GM tube (Geiger counter tube)Dose Rate Range: 0.01 to 1000 Sv/h (Maximum 10mSv/h)Cumulative Dose: 0.01 Sv/h to 500.0mSvEnergy Response: 50keV to 1.5MeV less than or equal to 30% (for CS 137)Sensitivity: 80CPM/ Sv/h (for Co 60)Alarm Threshold:a. Dose Rate: Can be set as 0.5, 1.0, 1.5, 2.0, 2.5, 5.0, 10.0, 50.0, 100.0 Sv/hb. Cumulative Dose: Can be set as 0.05, 0.5, 1.0, 2.0, 5.0, 10.0, 20.0, 50.0, 10.0 SvMeasurement Display: The dose rate is updated once a second, and the protection alarm response is less than 5 secondsDisplay Screen: LCD color screen displayAlarm Mode: Visual, audible .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Radiation Detector1 x Manual1 x Charging Cable1 x Storage Box