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: 0.01~1000¥ìSv/h (maximum 10mSv/h)
Cumulative dose equivalent: 0.01¥ìSv~500.0mSv
Energy response: 48KeV~1.5MeV¡Â±30% (for 137CS-)
Relative inherent error:
NR-750¡Â±15%(137CS1mSv/h)
NR-850¡Â±10%(137CS1mSv/h)
NR-950¡Â±3%(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, 100.0¥ìSv/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
Notes:
1. Due to the lighting effects and shooting angles, there is a color difference in the product, please understand.
2. Due to manual measurement, there is a tolerance in the product size.
![](https://ae01.alicdn.com/kf/S5e0a563a4f224d8e89c9e012b2d7fd75w.jpg)