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Geiger Counter NR-850 Nuclear Radiation β Y X-ray Detection

Geiger Counter NR-850 Nuclear Radiation β Y X-ray Detection

Regular price $189.99 NZD
Regular price Sale price $189.99 NZD
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Pro quality NR-850 geiger counter / nuclear radiation detector (Blue model).

LCD display with automatic data storage.

Three alarm methods: sound, light & vibration.

Higher spec Geiger tube, with improved accuracy & stability.


With an easy to read LCD display, the working status of the instrument is clearly displayed & you can quickly & accurately read the data you need.

With the function of automatically storing data, even if the power is suddenly cut off, the data is secure & can be stored for a long time.

The NR-850 nuclear radiation detector is greatly improved over more basic models.


  • Five measurement units: uSv/h, uGy/h, mR/h, cps, cpm.
  • Detecting rays: X, Y, β (hard beta rays)
  • Dose current rate: 0.01~1000usv/h (10msv/h)
  • Cumulative dose equivalent: 0.01μSv~500.0mSv
  • Energy response: 48KeV~1.5MeV≤±30% (for 137CS-)
  • Sensitivity: 80CPM/uSv (for Co-60)
  • Relative inherent error: NR-750≤±15%(137CS1mSv/h) – basic model, only reads uSv/h, uGy/h, mR/h
  • NR-850≤±10%(137CS1mSv/h) – higher spec Geiger tube, accuracy and stability improved, professional model
  • Alarm threshold: Dose rate: can be selected at 0.5, 1.0, 1.5, 2.0, 2.5, 5.0, 10.0, 50.0, 100.0μSv/h
  • Cumulative dose: can be selected at 0.05, 0.5, 1.0, 2.0, 5.0, 10.0, 20.0, 50.0, 100.0mSv
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