PSS-2x scope

The  is a weapon accessory featured in S.T.A.L.K.E.R.: Lost Alpha.

"A 5.0x fixed zoom optical scope with a built-in heat visor used to identify heat sources typical of the human body. Designed for use by special forces. Attached to weapons by means of a dovetail mount."

- Inventory description

Overview

 * Scope with fixed 2x zoom, heat sensor and target acquisition software.
 * As stated, operates by locating heat sources, including mutants.
 * Additionally adjusts the targeting graticules to indicate the hostility stance of human targets acquired:
 * 1) Yellow => Neutral target
 * 2) Green => Friendly target
 * 3) Red   => Hostile target (NB but does not differentiate between 'hostile' and 'hostile neutral' stances)
 * 4) Grey    => Mutant (with no indication of stance)
 * Available only in Developer's Cut (v1.4000+)
 * Fits assault rifles of Warsaw Pact design.