A compact search device with telescopic tube for quick detection and localization of gamma and beta radiation sources.

5 seconds are enough for quick evaluation of gamma background with 4 built-in Geiger-Muller counters. A big display with luminescent backlight simultaneously indicates units of measurement, measurement errors, threshold level and real time. Analog indicator of radiation intensity facilitates localization of radiation sources. The device has a built-in memory for 1200 measurements and 999 objects of inspection.



  • Damp and dustproof body IP54.
  • Big display with luminescent backlight.
  • Simultaneous indication of measurement units, measurement errors, threshold level and real time.
  • Analog twelve-segment indicator of registered radiation intensity.
  • Ability to perform measurements with a preset error.
  • Four-level indication of battery discharge.
  • Built-in memory which allows storing up to 1200 measurements and 999 numbers of the measured objects with ability to view the recorded information on the display of the device.
  • Mode of PC connection via Bluetooth.
  • Three independent measuring channels with alternate indication of data on the single liquid crystal display.
  • Prompt evaluation of gamma background within 5 seconds.
  • Automatic subtraction of gamma background at measurement of beta contamination.
  • Four built-in gamma, beta sensitive Geiger-Muller counters.
  • Automatic setting of measurement intervals and ranges.
  • Audio signaling of each detected gamma-quantum and beta-particle that can be switched off.
  • Two-tone audio alarm of exceeded programmed threshold levels.
  • Operation with telescopic tube.
  • Two AAA batteries.

Measurement ranges and main relative errors
Gamma and X-ray radiation ambient dose equivalent rate (137Cs) µSv/h 0.1…999.9;
% ±(15+2/H*(10)),where H*(10) is a numeric value of measured DER equivalent to µSv/h
Beta-particles flux density (90Sr+90Y) 1/(cm2×min) 5…100 000;
% ±(20+200/ϕβ), where ϕβ is a numeric value of measured beta-particles flux density equivalent to part./(cm2×min)
Energy ranges of measurement and energy dependence:
– Gamma and X-ray radiation MeV 0.05…3.0;±25%
– Beta radiation MeV 0.5…3.0
Resolution of threshold level programming for:
• dose rate µSv/h 0.01
• flux density 103/(cm2×min) 0.01
Time of continuous operation with fully charged batteries* hours 2 500
Operating temperature range ˚С -20…+50
Weight kg 0.44
Dimensions mm 160×75×35

* under gamma background not more than 0.3 µSv/h, switched off display backlight and alarm system