BR-9B Geiger Counter Nuclear Radiation Detector Personal Dosimeter Marble Radiation Tester (Upgraded Version)

This item ships from our: UK Warehouse
Ships to UK only.
Other destinations: Please contact us for details.

Product description

Need to measure background radiation? Need to make sure a piece of equipment is within specification for emissions? Not sure if that spider bite is radioactive? Planning a trip to the Chernobyl Exclusion Zone? Then these small handheld Geiger Counters are just the ticket. Small and feature packed, you'll be able to measure and detect varying levels and types of common radiation.


  • Updated model, released mid 2019
  • The upgraded functions are as follows: Cumulative function, Rechargeable batteries can be charged via the USB port, Size is greatly reduced (10.4*6.9*2.9mm)
  • High sensitivity.
  • Wide measuring range.
  • Long battery life
  • Military grade GM tube as the core sensor.
  • Ideal for use in the following fields: Material inspection, Environmental testing, Radiology Protection, Radio-pharmaceuticals screening.


  • Detectable species: Beta, Gamma, X-ray
  • Sensor Type: GM tube
  • Energy Range: 50kev-1.5mev less than 30%
  • Relative intrinsic error: less than plus or minus 10%
  • Sensitivity: 80cpm / USV / co-60
  • Mean error: 3%
  • The maximum dose equivalent rate: 99.99usv / h
  • Voice Source: Real particle sound / Alarm sound / Mute
  • The use of ambient temperature: -25 ~+45โ„ƒ
  • Relative humidity: less than 95%
  • Power supply: 2 x AA rechargeable/non-rechargeable batteries (NOT included)
    NOTE:ย If using NON-RECHARGEABLE batteries do not connect to a USB power source.
  • Charging: USB 5V 2A input
  • Charging time: 4 hours

Basic Instructions

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  • Power On: Push ON button to boot, once booted it will display the real-time monitoring interface
  • Shutdown: Press and hold off to fully shout down
  • Triangular start button is used to measure the mean, in the Natural environment there is background radiation, causing fluctuations within a certain range.
  • The top of the screen displays a blue font for the "second" real-time update of the dose rate, which is characterized by large fluctuations, update speed, real-time, is the mean of the middle of the red font display, is a mean dose rate period, when detecting an item or the environment when press the start button (this time can no longer move the tester)
  • Enter the state average measurement will display the measurement results after the end of the trend diagram below presents the average real measurement value of each moment, mean measurement is characterized by high precision, the effective dose equivalent response rate real environment, but the elapsed time is longer.
  • Speaker button is used to select the sound setting, each time you press the switch the mode changes.
  • When the small speaker icon is displayed when the alarm will sound once the alarm threshold has be reached
  • When the mute icon is displayed when that turn off all audible alarms.
  • The scale key (right key) is used to switch the alarm threshold, there are four settings 0.5 / 1.0 /2.0 /5.0

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