Feature 1Accurate Measurement: The screen automatically displays the test results. Fast response time and high accuracy, wide measurement range and long service life. 2Clear Data: The geiger counter is easy to use and can be detected after power on without calibration. The data is clear and intuitive, and the elderly can use it easily. 3Smart Alarm: The radiation dose detected exceeds the alarm threshold,the radiation monitor will automatically alarm. 4Easy To Use: Radiation detector is small and portable. Easy 1 handed operation. The button operation is simple and convenient. 5Wide Application: Widely applied in the environment where existing ionize radiation. Such as home improvement radiation, geological survey, iron, Inspection vehicles, nuclear power plants, industry, radiology, radiology laboratories and so on.Item Type: Nuclear Radiation Detector Product Material: ABSWeight: Approx. 192g / 6.8ozBattery Information: 3 x AAA (Shipped With Battery)Battery Capacity: 1500mAhMeasuring Range: 0.1Sv/ h-10msv /hProduct Size: Approx. 11.5x6cm / 4.5x2.4in . Package List1 x Nuclear Radiation Detector1 x English Manual1 x Screwdriver1 x USB Data Cable