VLF 500 Aspirating Smoke Detector
The VLF 500 Aspirating Smoke Detector by VESDA (Xtralis) is a very early warning smoke detection unit engineered for small, business-critical spaces that demand protection well before a conventional detector would react. It actively draws air through a sampling pipe network, filters it, and passes it into a detection chamber where laser-based light-scattering technology identifies microscopic smoke particles giving teams crucial minutes of lead time to intervene before a fire can develop. The VLF-500 variant is sized specifically for areas up to 500 m² (5,000 sq. ft.), making it ideal for small-to-midsize data rooms, control cabinets, archives, telecom closets, and high-value retail back-of-house spaces.
Features
- Active air sampling through a pipe network for continuous monitoring
- Laser-based light-scattering detection for very early warning sensitivity
- Coverage up to 500 m² (5,000 sq. ft.) per unit
- On-device display for detector status at a glance
- Onboard relays and optional interface cards for system integration
- Self-contained aspirating technology no ceiling detectors required
- Engineered for small, business-critical spaces with high asset value
Benefits
The VLF-500 exists because some environments data center white space, telecom frame rooms, museum archives, server closets lose catastrophic value from even a brief smouldering event that a spot detector would never catch in time. By continuously sampling air and looking for very small particle concentrations, it buys facility teams something conventional detection cannot: response time measured in minutes, not seconds after ignition. The pipe-network design also puts sampling points exactly where airflow, cabinet racks, and high-value equipment are concentrated, rather than relying on ceiling drift. For organizations where downtime or irreplaceable assets drive insurance and continuity decisions, that early warning translates into direct ROI.
Why Choose QuickShipFire?
- Specialized VESDA stocking for data center, archive, and telecom protection projects
- Assistance sizing the VLF-500 vs VLF-250 against your actual room square footage
- Coordination on sampling pipe layouts and fitting ancillaries to avoid delayed commissioning
- Support for integrators migrating from older legacy aspirating systems to modern VESDA VLF
- Careful pre-shipment verification given the higher unit value of aspirating systems

