NR-900S detects electronic devices that contain semi-conducting elements, including mobile phones, improvised explosive devices (electronic control systems of IEDs), concealed electronic devices during TCSM (technical surveillance counter-measures) operations.

A non-trivial solution for the receiving tract of the detector provides for the possibility of fine structure analysis of the reflected signal.

For the first time ever the non-linear detector has a unique capacity to identify and select active electronic targets against a background of interfering noise generated by other electronic devices.

Modular design solution provides for operational use of NR-900S (Sound) in a compact "pistol" version as well as the "rifle" version that allows take-out of the antenna on the sliding telescopic rod.