{{ :wiki:br-9b.jpg?nolink&200|}}====== BR-9B Beta-, Gamma- and X-Ray Dosimeter ======
[[https://www.aliexpress.com/item/32956938960.html?spm=a2g0s.9042311.0.0.27424c4dTOoczL|Product Page on Aliexpress]]\\

Specifications:
  * Detectable radiation: Beta-, Gamma- and X-rays
  * Sensor Type: Geiger-Müller tube
  * Energy Range: 20kev-3.0mev less than 30% (137Cs-)
  * Sensitivity: 80cpm / USV / Co-60
  * Accuracy: 0.01usv/h
  * Real-time range 99.99usv/h
  * Cumulative range 0-99.999msv
  * Relative intrinsic error of less than plus or minus 10%
  * Mean error: less than 3%
  * Use in ambient temperatures from -25°C to +45°C
  * Relative humidity less than 95%
  * Power supply: 3pcs AA batteries or 1.2V rechargeable battery
  * Can be powered by USB port for long-term monitoring.
  * Charging: 5V 2A Micro USB input
  * Size: 105*70*30mm / 4.13*2.76*1.3inch