Personal Gamma Radiation Dosimeter DKG-21

  • Сonforms to the CE standards
  • Meets the requirements of IEC 61526 standard
  • Number U2514-07 in State Register for Measuring  Instruments
  • State Sanitary-Epidemiological Conclusion # 05.03.02-04/25552 of May 23, 2007
  • ТУ У 33.2-22362867-010:2007
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Radiation Badge EcotestCARD is a direct reading personal dosimeter for personnel exposure monitoring.

This dosimeter badge can be used either independently or within the automated system of personal dosimetry control ASIDC-21.

The radiation monitoring badge EcotestCARD allows storing dose accumulation history with real time reference in the non-volatile memory, and communicating it to the computer. If the programmed threshold levels of gamma dose or its rate are exceeded, light and audio alarms are actuated.

In 2011, the Ministry of Emergency Situations of Ukraine sent EcotestCARD dosimeters to Japan as humanitarian aid for recovery from the accident at the Fukushima NPP, where they gained a reputation of a reliable and precise product.

Video guide

Purpose of Use

Purpose of Use

  • Measurement of gamma and X-ray radiation individual dose equivalent rate (DER).

  • Measurement of gamma and X-ray radiation individual dose equivalent (DE).

  • Clock, alarm clock.


  • Stand-alone use or use within automated system of personal dosimetry control.

  • Storage of dose accumulation history in the nonvolatile memory with real time reference.

  • Transfer of dose accumulation history through the infrared port to the computer.

  • Blocking the mode of power supply switch off until the data reading procedure finished.

  • DER and DE threshold levels programming of gamma and X-ray radiation with the help of the computer or manually with control keys.

  • Blocking certain indication modes in response to the computer command.

  • Light and audio alarms when programmed threshold levels exceeded on DER and DE of gamma and X-ray radiation.

  • Display automatic switch off if current gamma background is lower than the preset threshold level with instant switching on at:

    – pressing any control key;

    – gamma background increase above the preset threshold level;

    – alarm clock ringing.

  • Periodic self-testing of batteries and detector.

  • Energy-compensated Geiger-Muller counter.


Measurement ranges and main relative permissible error limits
– gamma and X-ray radiation individual dose equivalent rate HP(10) µSv/h 0.1…1 000 000;
(1…10 µSv/h; ±20%;10 µSv/h…1 Sv/h; ±15%)
– gamma and X-ray radiation individual dose equivalent HP(10) mSv 0.001…9 999;
Energy range of detected gamma and X-ray radiation and energy dependence MeV 0.05…6.0;
(0.05…1.25; ±25%)
Recording resolution of dose accumulation history in the nonvolatile memory minutes 5…255
Time of data storage in the nonvolatile memory years not less than 10
Data exchange rate through infrared port bit/s 38 400
Positive data exchange distance between the dosimeter and the infrared port adapter m not more than 0.3
Lithium-ion storage battery (LIR2450) life* hours 3000
Operating temperature range °C -20…+50
Weight kg 0.08
Dimensions mm 90x55x10
*under gamma background not more than 0,5 µSv/h, switched off alarm system and display
Download operating manual


  • Certificate of Type Examination № UA-TR.113-0347-19 dd. March 27, 2019

  • Declaration of conformity with the CE standards. The tests for compliance have been conducted at BICON laboratories B.V. (the Netherlands)

  • Type approval certificate #0111-CS-A-18-14 issued by Czech metrology institute that confirms DKG-21 compliance with the IEC 61526:2005 standard.

Delivery Kit

  • DKG-21 “EcotestCARD” dosimeter;
  • charger
  • operating manual;
  • case with a clip;
  • packing box.