Radiation Monitor RADEX RD1706

Radiation Detector 
(Geiger Counter) English
for a very limited time 

RADEX RD1706 is the enhanced version of the basic RD1503 model.  The device uses two SBM20-1 type Geiger–Muller counters, one each for beta- and gamma-rays.  The use of two separate sensors allows the reduction in measurement time to 26 seconds while increasing accuracy.

The range of indications was expanded 100 times, compared to RADEX RD1503.  RD1706 can register the value of a doze-rate as high as 999.0 µSv/h.  

Time of observation automatically adjusts from 26 seconds to as low as 1 second when presence of strong radiation sources is detected. This is necessary to ensure safety of professionals working with or operating ionizing radiation sources.

Most other features from the RADEX family were also retained - the sturdy constrcution with large LCD screen, three operation buttons, battery charge indicator, display backlighting and personal settings like threshold alarm activation, alarm strength, backlight option.

Addition of vibration function allows one to be aware (discretely) of the radiation contamination around.

Improvements of RADEX RD1706 over the basic model RADEX RD1503

  • gamma-, beta- and x-ray radiation;
  • expanded range (to 999.0 µSv/h);
  • short 26 seconds sampling;
  • 1 second sampling for levels over 3.5 µSv/h;
  • two GM tubes for precision;
  • both audio and vibration alarm

Technical specifications

Scale range of ambient radiation µSv/h from 0.05 to 999.0
Scale range of gamma- radiation energy MeV from 0.1 to 1.25
Scale range of X-ray radiation energy MeV from 0.03 to 3.0
Scale range of beta- radiation energy MeV from 0.25 to 3.5
Reproducibility of indications (at P=0.95) where P is a dose rate in µSv/h % 7+6/Р
Alarm threshold levels µSv/h from 0.1 to 99.0
Measurement Cycle seconds from 26 to 1*
Measurements - continuous
Batteries («AAA»)


Time of continuous operation, not less than hours 500 **
Overall dimensions  mm 105 х 60 х 26
Weight (without batteries) g 90

* 1) Measurement cycle decreases when ambient radiation exceeds 3.0 µSv/h.
   2) The greater the number of measurements cycles, the higher the reliability of measured results.

** 1) At factory settings, with ambient radiation not to exceed 0.3 µSv/h, and two "AAA" batteries with capacity of 1350 mAh.
     2) The device can operate with one «ААА» battery (the time of continuous operation will be reduced).

Radiation Detector
(Geiger Counter) English

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How does it compare with other nuclear accidents and our everyday radiation exposure?

Not all radiation is the same, so scientists use the ‘sievert’ to measure the health risks of radiation.

SAFE Radiation Dose: 0.09 microsieverts
Exposure: One year living within 50 miles of a nuclear power plant 


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