Polimaster's PM1703GN series of Personal Radiation Detectors is a unique family of gamma neutron pagers capable of detecting the slightest amounts of radioactive and nuclear materials. These instruments are recommended for customs officers, border patrol agents, first responders, and law enforcement officers whose duties include counteracting the illicit trafficking of radioactive and nuclear materials as well as counteracting the efforts to use these materials for terrorism.

The instruments are each equipped with a CsI(Tl) and a LiI(Eu) scintillation detector to alert the user that radiation levels have exceeded the threshold value. The PM1703GN series of instruments perform the following functions:

  • Detect gamma and neutron radiation sources, even when they are shielded
  • Search for and locate gamma or neutron radiation sources
  • Alert the user to the presence of a radiation source through audible and vibrating alarms
  • Record and store data for up to 1000 events in the instruments' non-volatile memory
  • Transmit all recorded data via an infrared channel for data processing and analysis

Once the instrument is turned on, it automatically begins taking measurements and storing the background radiation information. The instruments can detect even the slightest increase that exceeds the radiation background level. The instruments' advanced processing algorithm enables the user to update the background levels and modify the alarm thresholds to avoid false alarms.

The PM1703GN is designed to ensure adequate adaptation to the changing background level (during mobile operations) allowing the instrument to locate a radioactive source in a changing environment. For example, the instrument can detect radiation sources when the background levels decrease due to radiation shielding or when the background radiation intensity increases. The PM1703GN will successfully locate the source in a changing environment.

The PM1703GN allows for easy and comfortable operation with its ergonomic, small and light-weight design. Additionally, the PM1703GN's hermetically sealed and shockproof case and the LCD screen's fluorescent backlight allow for easy operation and precision even in the harshest, most unfavorable environments or under extreme weather conditions.

PM1703GN - Personal Radiation Detector
Detector type
- gamma CsI (Tl)
- neutron LiI (Eu)
Energy range  
- for gamma 0.033 – 3.0 MeV
- for neutron from thermal to 14.0 MeV
Time of measurement 0.25 s
Range of n coefficient (number of mean square deviation of ambient background σ) Step from 1 to 9.9
Accuracy of exposure rate measurement over the range of 10 to 4000 μR/h on 137Cs in collimated radiation ±30%
- in background updating mode 36 s
- in the search mode 2 s
- Special nuclear materials  
Additional functions PC communication mode (IR)
Power supply One AA battery
Battery life time (not more than 5 min/24 hours), not less 1000 h
Battery discharge warning indication on LCD
Drop test on concrete floor 2.3 ft (0.7 m)
Protection degree of case IP67
Operating conditions:  
- temperature range -22°F to 122°F (-30°C to 50°C) (-22°F to 5°F (-30°C to -15°C) only audible and vibration alarm is available)
- relative humidity at 95°F (35°C) up to 98 %
- pressure from 10.2 to 15.5 psi (from 70 to 106.6 kPa)
Weight (with battery), max 8.1 oz (230 g)
Dimensions 3.43’’ x 2.83’’ x 1.57’’
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