The HSSD is an early warning system that detects changes in the conditions of the room atmosphere due to incipient smoke generated before the fire starts.

HSSD System uses high sensitivity micro laser detectors to provide the earliest possible identification of an incipient fire from separate areas. It combines many features from the highly successful HSSD in a single detection package of unrivalled sophistication with the following features:-

- Individual high sensitivity detectors. No delay waiting for mechanical valves to scan inlet pipes and identify which area contains smoke.

-  Individual detectors do not give pipe to pipe smoke dilution for higher sensitivity.

- The sensitivity range and time delays for each detector pipe can be individually adjusted.

- Full ClassiFire artificial intelligence to ensure all detectors operate at optimum sensitivity to eliminate unwanted alarms.

- Full monitoring of dust separation system by ‘ClassiFire’ to maximize detector efficiency.

- Incorporates Laser Dust Discrimination (LDD™) to eliminate potential problems caused by dust.