Feature 1Accurate Measurement: The 2.8inch screen automatically displays the test results. Fast response time and high accuracy, wide measurement range and long service life. 2Smart Alarm: The radiation dose detected exceeds the alarm threshold,the radiation monitor will automatically alarm. Cumulative dose and dose rate display. 3Save Data: Automatically save data, automatically save accumulated dose, built in memory, power off can be saved for a long time. 4Multi Function: With mute, alarm, particle sound selection buttons, test, average reset and retest selection buttons, the backlight can be turned on or off. The button operation is simple and convenient. 5Widely Used: Radiation detector can be used in material inspection, environmental testing, radiation protection, radiopharmaceutical screening, etc.Item Type: Nuclear Radiation Detector Product Material: ABSWeight: Approx. 133g / 4.7ozBattery Information: 3 x AA (Shipped Without Battery)Detectable Types: Beta, Gamma, X RaySensitivity: 80cpm sv (Co-60)Test Accuracy: 0.01sv/hReal Time Range: 0-99.99sv/hAccumulation: 0-99.999msvReal Time Error: 10%Average Error: 3% .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 Instruction Manual