The VESDA VLI is a pioneering aspirating smoke detection (ASD) system, uniquely developed to safeguard large industrial areas and challenging surroundings spanning up to 2000 m2 (21,520 sq. ft.). Equipped with an innovative Intelligent Filter (patent pending) and a robust clean-air barrier, the VLI detector enables dependable detection while maintaining optical protection. Its extended detection chamber lifespan eliminates the requirement for re-calibration.