Portable DesignThis nuclear radiation detector has a hand-held portable design for easy portability and storage. Testing anywhere is very convenient and fast. Fast Measurement This Digital Counter can realize real-time detection, fast measurement, real-time update of cumulative dose, simple and intuitive, etc High SensitivityHandheld Counter adopts imported sensor processor, which has high sensitivity, high precision and fast response speed. Liquid Crystal DisplayPersonal LCD Radiation Tester adopts liquid crystal display, the working status of the nuclear radiometer can be clearly seen on the display screen, you can quickly and accurately read the data you need. Storage FunctionThe LCD Radiation Tester has an automatic data storage function, even if the power is suddenly cut off, the data will not be lost and can be stored for a long time. Features: 1. Portable design: Hand-held portable design, easy to carry and store, can be tested anywhere. 2. Alarm mode: There are three alarm modes of sound, light and vibration, which can remind you better and give you a better experience. 3. High sensitivity: The imported sensor processor is adopted, which has high sensitivity, high precision and fast response speed. 4. Storage function: With automatic data storage function, even if the power is suddenly cut off, the data will not be lost and can be stored for a long time. Specification: Material: ABS Model: NR-850 Detection rays: X, Y and hard beta rays Dose equivalent rate: 0.01~1000Sv/h (maximum 10mSv/h) Cumulative dose equivalent: 0.01Sv~500.0mSv Energy response: 48KeV~1.5MeV30% (for 137CS-) Relative inherent error: NR-75015%(137CS1mSv/h) NR-85010%(137CS1mSv/h) NR-9503%(137CS1mSv/h) Language: English, Chinese Sensitivity: 80CPM/uSv (for Co-60) Alarm threshold: Dose rate: can be arbitrarily selected from 0.5, 1.0, 1.5, 2.0, 2.5, 5.0, 10.0, 50.0, 100.0Sv/h Cumulative dose: selectable 0.05, 0.5, 1.0, 2.0, 5.0, 10.0, 20.0, 50.0, 100.0mSv Power: 2 * AA batteries (not included) Packing size: about 172*126*36mm/6.8*5.0*1.4in Packing weight: about 200g Packing List: 1 * Nuclear Radiation Detector 1 * Manual