LDWS-1 is a device used for detecting laser irradiation. The system is designed to activate an alarm (with audio and visual feedback), and, if requested, other countermeasures, when it detects that the vehicle it was mounted on has been marked by various types of lasers including laser range finders, laser designators and laser beam riders.

The system consists of a central detection unit, tasked with capturing both direct and indirect rays, and an interior unit used for displaying the direction, intensity and type of said laser irradiation.