Aspirating Smoke Detection

VESDA Laser Scanner

Product Overview

The VESDA Laser Scanner (VLS) is similar to the VESDA Laser Plus (VLP), with the addition of an inlet manifold valve mechanism and software to control airflow from four separate sectors (pipes).

This configuration enables a single zone to be divided into four sectors, for example, distinguishing between separate spaces within a room.

In normal operation, the VLS draws air from all sectors in use. If the smoke level reaches a pre-determined threshold, the VLS identifies which sectors have smoke. The VLS then designates the first alarm sector. (If multiple sectors have smoke, the sector with the highest smoke concentration is designated as the first alarm sector, FAS.)

Once the FAS has been identified, the VLS continues to monitor all four sectors (pipes) to monitor fire growth.


  • Individual pipe identification
  • Adaptive scan threshold
  • Wide sensitivity range
  • Laser-based smoke detection
  • VESDAnet™ communication
  • 4 alarm levels per sector
  • High efficiency aspirator
  • Clean air barrier optics protection
  • Easy to replace air filter
  • 7 or 12 programmable relays option
  • AutoLearn™
  • Referencing
  • Event log
  • Recessed mounting

Click here to download the white paper: Aspirating Smoke Detector Pipe Installation


Product Code Description
VLS-600 FD7 Scanner, Blank with FIRE 1 & OK LED's + Blank
VLS-204 VLS, FD7, Blank, Display, 7 Relays Fitted
VLS-214 VLS, FD7, Blank, Display, Programmer, 7 Relays Fitted
VLS-700 FD12 Scanner, Blank with FIRE 1 & OK LED's, Blank
VLS-304 VLS, FD12, Blank, Blank, Display, 12 Relays Fitted
VLS-314 VLS, FD12, Blank, Display, Programmer, 12 Relays Fitted
VRT-900 VLS Remote Box with Blank plate, 12 Relays