АТ6130A, AT6130D Radiation Monitors

Compact devices intended for gamma and X-radiation ambient dose equivalent and ambient dose equivalent rate measurement.
  • w/o PC communication interface
  • with Bluetooth interface
  • Low weight and small size
  • Automatic compensation of intrinsic detector background
  • Sound and visual alarm in case threshold level is exceeded for dose and dose rate
  • Rapid reaction to statistically significant change of dose rate (measurement process restart)
  • Field operation capability over a wide temperature range
  • In search mode each registered gamma quantum is indicated by a sound signal
  • Up to 2000 measurement results can be stored in non-volatile memory with information about measurement date and time
  • Measurement results, current time, date and battery life indicator is displayed on matrix LCD screen
  • Measurement results can be transmittedt to a PC via Bluetooth interface (If available)
  • Headphones can be attached when working in noisy environment
  • Radiation protective measures in case of nuclear disasters
  • Civil protection
  • Radioecology
  • Fire-fighting service
  • Customs service
  • Dosimetric monitoring in manufacturing facilities, health care and other institutions 
Operating principle
Devices operating principle is based on the process of count rate measurement of impulses, generated in Geiger-Muller counter tube under the influence of X and gamma radiation.
Count rate is converted automatically into measurable physical values throughout the range. Energy compensating filter allows correcting energy dependence of sensitivity efficiently in entire energy range of photon radiation.
Microprocessor-based unit is responsible for controlling the radiation monitors operating modes, calculations, storing and displaying measurement results and for self-checking function.
The radiation monitors AT6130A and AT6130D have the pattern approval certificates of Republic of Belarus, Russian Federation, Ukraine, Kazakhstan and Lithuania.


Standard energy response of monitor
sensitivity respect to 137Cs
gamma radiation of 662 keV
Standard sensitivity response upon
gamma radiation incidence angle
respect to the calibration direction
Ambient gamma and X radiation dose rate equivalent  indication range
0.01 µSv/h...10 mSv/h
or  1 µrem/h...1 rem/h *
0.01 µSv/h...100 mSv/h
or  1 µrem/h...10 rem/h *
Ambient gamma and X radiation dose rate equivalent measurement range  
            AT6130A 0.1 µSv/h...10 mSv/h
or 10 µrem/h...1 rem/h *
            AT6130D 0.1 µSv/h...100 mSv/h
or 10 µrem/h...10 rem/h *
Ambient gamma and X radiation dose equivalent indication range  
            AT6130A 1 nSv...100 mSv
or  0.1 µrem...10 rem *
            AT6130D 1 nSv...1 Sv  
or  0.1 µrem...100 rem *
Ambient gamma and X radiation dose equivalent measurement range  
            AT6130A 0.1 µSv...100 mSv
or10 µrem...10 rem *
            AT6130D 0.1 µSv...1 Sv
or10 µrem...100 rem *
Intrinsic relative error of dose rate measurement in the range from 0.1 µSv/h to 10 mSv/h (10 µrem/h...1 rem/h)
±20% max.
X and gamma radiation energy range 50 keV...3 MeV
Sensitivity to 137Cs gamma radiation 2.8 cps/µSv·h-1
Response time for dose rate measurement (for dose rate ≥1 µSv/h) ≤7s  (accuracy error ≤±10%)
Energy dependence relative to 662 keV (137Cs) ±30%
Radiation overloading Radiation monitors can withstand 100-fold rise of dose rate measurement upper range limit for 5 minutes with readings not lower than maximum
Continuous run time ≥500h
Working temperature range  
            AT6130A 40°C...+55°C (-40°C...-20°C w/o measurement value indication)
            AT6130D -20°C...+55°C
Relative humidity with air temperature ≤35°C without condensation ≤95%
Drop protection From ≤1.5 m to hard surface
Protection class IР57
Power supply 2 x AAA-size batteries (LR 03) or 2 x AAA-size rechargeable cells with nominal voltage 1.2 V
Overall dimensions 110x60x38 mm
Weight 0.25 kg
* Units of measure are chosen during ordering procedure and cannot be altered later.
The radiation monitors AT6130A and AT6130D meet International standard requirements:
IEC 60846-1:2009, IEC 60325:2002; Safety standard requirements: IEC 61010-1:1990;
EMC requirements: EN 55022:1998+А1:2000+А2:2003, EN 55024:1998+A1:2001+A2:2003,
IEC 61000-4-2:2001, IEC 61000-4-3:2008.

Design and specifications are subject to change without notice

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