Miniature personal dosimeter-radiometer MKC-03CA. Measures at the level of natural background radiation with a short time. It has voice accompaniment to complete and carry out measurements and their results.


Distinctive features
Main technical characteristics

By its technical characteristics the MKC-03СА fully satisfies the requirements of the instructions of Central Bank RF №131-I from 04.12.2007.

It was awarded a Gold medal and a Diploma of the International Exhibition «MetrolExpo 2010»

The instrument has been registered in State register of instrumentation under № 44593-10.
Approval certificate of instrumentation type
RU.C.38.050.A № 40220

MKC-03СА – a professional small personal dosimeter-radiometer with a little time measurements at the level of natural background radiation and the speech  measuring results, intended for:

  • measurement of the ambient dose equivalent of gamma – (x-ray) radiation;
  • measurement of ambient equivalent dose  rate of gamma – (x-rays) radiation;
  • measurement of beta – particles flux density from contaminated surfaces;
  • measurement of specific activity of radio nuclides in samples of food products and other objects of environment;
  • evaluation of alpha- particles flux density;
  • evaluation of ionizing particles flux in the mode «SEARCH»;
  • on-site search for sources of ionizing radiation, control of radioactive contamination of banknotes and their packages and operational assessment of the radiation situation

 Operation manual MKC-03CA   >>> [load]

Download Dosimeter MKS-03SA Simulator
(The program is a programming model that runs on a PC (OS Windows), and behaves almost identically to the real device)

  • fast change of the testimony in statistically significant change of the intensity of the radiation;
  • built-in end gas-discharge counter of gamma-, beta-  and alpha- radiation with the total area of the input window of the detector 39 cm2 with a removable filter compensates for with a sensitivity to gamma radiation 45 000 imp/mSv,  the effectiveness of the registration by beta radiation 90Sr +90Y – not less than 65%, the alpha – radiation of 239Pu – not less than 20%;
  • voice reproduction of the results of measurements of dose rate of gamma-  radiation and their voice assessment («OK»,«WARNING»,«DANGEROUS») in Russian or English;
  • sound (clicks) and visual alarm radiation intensity;
  • large graphic LCD with backlight;
  • simultaneous display the results of the measurement in the digital and analog form, units of measurement, current statistical error of measurement, a set threshold alarm measured value (which determines the maximum value of the analog scale), the sequence number of the current record in the journal of measurements, time, date and day of the week;
  • tone sound signaling when exceeding a user-defined threshold dose, flux density of beta – and alpha – particles and the flow of ionizing particles;
  • recurring or hand write in the journal of measurements with non-volatile memory of up to 2000 results of measurements of the dose, the dose or flux density of ionizing particles with their current statistical error, the date and the time of their conducting;
  • possibility of data exchange with a PC (via USB port).

Parameter description


Dose measuring range, mSvfrom 1·10-4 to 1·103
Dose rate measuring range, mcSv/hfrom 0,1 to 1•104
Photons energy range, MeVfrom 0,05 to 3,0
Measuring range of beta-particles flux density (by 90Sr + 90SY),
min-1 x sm-2
from 3 to 3×104
The lower limit of the beta-radiation energy being registered (by average energy of beta-spectrum 14 С), not more than, MeV0,05
The limit of permissible basic relative error in the confidence 0,95, %±25
Indication range of alpha-particles flux density (by 239Pu),
(min-1 x sm-2)
from 10 to 3×104
Indication range of ionization particles flux
(for  90Sr + 90Y), min-1
from 10 to 3×104
The range of the measurements of specific activity of samples with the density of 0.5 to 1.5 g/cm3 :

  • for 90Sr + 90Y, Bq / kg;
  • for  137Cs
100 to 2×105
50  to 2×105
Natural background level:
– in “GAMMA” mode, mcSv/h, not more than
– in “BETA” mode, min-1 x sm-2, not more than
Operating mode setting time, min, not more than1
Continuous operation time period (when measuring at the level of the natural radioactive background),  hour:
– by 2 batteries of АА “DURACELL” type
– by AC 220V, 50 Hz (by voltage adapter)
Not less than 400
Not limited
Dose rate measuring time, s, not more than:
– when the background is 0,15 (0,30) mcSv/h
– when the background is more than 1 mcSv/h
20 (10)
Time measurements of beta particles flux density (excluding the background measurement time), s, not more than
– when beta particles flux density is less than 5 min-1sm-2
– when beta particles flux density is more than 100 min-1sm-2
Dose rate thresholds setting range, mcSv/h  (with 0,1 mcSv/h step)from 0,1 to 104
Dose thresholds setting range, mSv (with 0,001 mSv step)from 1·10-4 to 103
Beta-particles flux density thresholds setting range, min-1?sm-2
(1,0 min-1 x sm-2 step)
from 5 to 30000
Speech output of dose rate measuring resultAutomatic with intervals 30s, 60s or 120s.
Single-staged, at any time
Sound signaling activated when exceeding the preset the thresholds dose rate  and alpha- or beta-particles flux densityOn-off signal with 1 s interval
Sound messages:
–    when the instrument power supply is on;
–    when the instrument power supply is off;
–    when exceeding the measuring limit of the dose rate, alpha- or beta- flux density;
–    when exceeding the preset dose threshold
“Instrument is ready for operation”
“Instrument is off”
“Result exceeds the measuring limit”
“Dose threshold exceeding”
Intervals of records in the log, min1; 5; 30 or OFF
Log capacity, number of records2000
Operation conditions:
– temperature, oС
– humidity at 30 oС
from minus 20 up to +50 oС
up to 75 %
Overall dimensions, mm150x75x30
Mass, g, not more than360