IdentiFINDER R400

The most versatile gamma - neutron spectrometer on the market


The R400 is a new generation instrument largely based on the original IDENTIFIER. The R400 is capable of accurately detecting, locating, measuring and identifying radionuclides that emit gamma radiation.

Supplier: Flir Systems


  • Detects, locates, measures and identifies radionuclides
  • Gamma and neutron detection

The ability to detect gamma ray sources as well as the presence of neutrons in the radiation field through an optional neutron detector increases the versatility of the R400.

The standard R400 includes a 1.4″ (35mm) diameter NaI (Tl) detector and 2″ (51 mm) long plus a GM tube for high gamma dose rate measurement. The instruments are supplied with carrying case and wrist strap, standard cable, battery for rechargeable and non-rechargeable batteries, charger and carrying case with shoulder strap. Optionally, a sealed 3He neutron detector can be added for neutron detection. The identiFINDER R400 is also available in a fully watertight hull. Variations in operating conditions may affect the performance of the isotope radio-identification devices (riid) with the scintillation detectors.


  • Proven solution with 20,000 deployed units
  • High resolution and reduced false alarms
  • Visual, audible and vibrating alarms

Product applications

  • Customs / Border Security
  • Emergency situation
  • Civil protection
  • Environmental monitoring