Dosimeter-radiometer MKS-05 - TERRA without Bluetooth

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  • New big display with luminescent backlight.

  • Simultaneous indication of units of measurement, threshold level and real time on the display.

  • Analog ten-segment indicator of registered radiation intensity.

  • Possibility to perform measurements with a preset error.

  • Audible, vibration and vibration-audible alarm.

  • Four-level indication of battery discharge.

  • Built-in memory which allows storing up to 1200 measurements.

Availability: In stock


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Purpose of use

  • Measurement of gamma and X-ray radiation ambient dose equivalent rate.
  • Measurement of gamma and X-ray radiation ambient dose equivalent.
  • Measurement of surface beta-particles flux density.
  • Measurement of ambient dose equivalent accumulation time.
  • Real time measurement (clock), alarm clock.


  • Five independent measuring channels with alternate indication of data on the single liquid crystal display.
  • Built-in gamma, beta sensitive Geiger-Muller counter.
  • Prompt evaluation of gamma background within 10 seconds.
  • Automatic subtraction of gamma background at measurement of beta contamination.
  • Measurement results averaging, manually and automatically interrupted.
  • Automatic setting of measurement intervals and ranges.
  • Audible, vibration and vibration-audible alarm of each detected gamma-quantum or beta-particle with possible switching off.
  • Two-tone audible, vibration and vibration-audible alarm of exceeded programmed threshold levels.
  • Digital display backlight.
  • Two AAA size batteries.
  • Low battery indication.
  • Shock resistant body.
  • Small weight and dimension parameters.


  Measurement ranges and main relative errors:
- Gamma and X-ray radiation dose equivalent rate (137Cs) µSv/h 0,1…9 999;

where H*(10) - µSv/h
- Gamma and X-ray radiation dose equivalent (137Cs) µSv 0,001…9 999;
- Beta-particles flux density (90Sr+90Y) 1/(cm²·min) 10…100 000;
±(20 + 200/φβ)% 

where φβ - 1/(cm² * min)
- Dose equivalent accumulation time and accuracy of measurement: 1min…9 999h;
±0,1s per 24h
  Energy ranges of measurement and energy dependence:
- Gamma and X-ray radiation MeV 0,05…3,0;
- Beta radiation MeV 0,5…3,0;
  Resolution of threshold level programming for:
- dose rate
- dose
- flux density


  Battery life hours 1 500
  Operating temperature range °C -20…+50
  Weight kg 0,15
  Dimensions mm 120×52×26




  • MKS-05 "TERRA" dosimeter-radiometer;
  • operating manual;
  • cardboard box;
  • leather case.


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