AT1321 Spectrometric Personal Radiation Detector

AT1321 Spectrometric Personal Radiation Detector (SPRD)

– Search and detect gamma radiation sources with identification of radionuclide composition
– Measure gamma radiation ambient dose equivalent rate


  • Highly-sensitive to gamma radiation and compact
  • Spectrum analysis and radionuclide identification without PC
  • Integrated GPS module
  • Sound, light and vibration notification
  • “GARM” application software for further data processing and analysis in expert mode and radiological mapping


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Detectors Scintillation NaI(Tl), Ø25×40 mm;
Geiger-Muller counter tube
Energy range 20 keV – 3 MeV
Detectable activity of 137Cs source, located at the distance of 15 cm in a time not longer than 2 s (50±10) kBq
Typical resolution at 662 keV (137Cs) 8.5%
Measurement range of ambient dose equivalent rate 30 nSv/h – 100 mSv/h
Limits of tolerable intrinsic relative error
Typical sensitivity to 137Cs gamma radiation 425 cps/(µSv·h-1)
Energy dependence relative to 662 keV (137Cs) ±20% (50 keV – 3 MeV)
Response time for dose rate change from 0.1 to 1 µSv/h <2 s
Protection class IP54
Overall dimensions, weight 145x100x50 mm, 0.7 kg

Design and specifications are subject to change without notice.
For details please refer to the datasheet.


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