The GMS-4x4 is a versatile radiation detection system that can be mounted in vehicles or be used as a stand-alone system. The GMS-4x4 provides exceptional detection and identification of a wide range of radioactive materials, including special nuclear materials (SNMs), such as plutonium and highly enriched uranium, as well as more common radionuclides and materials, such as 40K, 60Co, 57Co, 137Cs, 192Ir, 226Ra, 241Am, 232Th, and 201Tl.


  • Configurable, fixed, or customized systems to meet the needs of the mission

  • Gamma and neutron detection

  • Exceptional detection and identification of SNM, NORM and other radionuclides

  • Water-resistant and dust-tight for use in harsh environments

  • Data logging with GPS coordinates—radiation mapping; heat mapping; survey data