Feature 13 Data Provided: Three groups of radiation data, including current radiation amount, average radiation amount and total cumulative radiation amount are displayed by this detector in real time. 2Alarm Function: This detector possesses function of over standard measurement and particle receiving alarm reminder, and the over standard radiation is equipped with sound and light reminder, and the alarm sound can be turned off. 3Fault Prompt: When the instrument sensor fails, the screen will display Err letter; If the current quantity is reset to zero, it means that the equipment is faulty. Then you can quickly repair it to defend your health. 4Wide Application: This detector can be used to measure various environments, whether it's at home, outdoors, hospitals, garbage dumps, 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: 2 x AA Ni MH battery 1500mAh (shipped with battery)Detection Ray Type: , X and radialDetector: Energy compensation GM tube (Geiger counter tube)Dose Rate: 0.00 to 999 Sv/h (1mSv/h maximum)Average Equivalence Rate at 5 Minutes: 99.0 Sv/hAccumulation: 0.00 to 99999 Sv/h (99.0mSv)Energy Range: 30keV-1. 5MeV less than or equal to +30% (for 137Cs)Language: Chinese, English and JapaneseError: Less than or equal to +10% (137CS 1mSv/h)Sensitivity: 80CPM/ Sv/h (for Co-60)Alarm Threshold: Factory setting 0.50 Sv, alarm value can be setAlarm Function: Sound, light (can be turned off) .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 Detector2 x Battery1 x Charging Cable