Xtralis is a global leader and pioneer in life safety. We invented VESDA very early warning aspirating smoke detection (ASD), the world's No. 1 ASD brand. Customers worldwide rely on VESDA by Xtralis when business continuity is imperative, environments are challenging, and time is required to ensure safe and orderly evacuation. VESDA ASD systems also can be equipped with modules to detect hazardous/combustible gases to extend their value beyond smoke detection to include gas detection and environmental monitoring.