XAS-1-US | Xtralis Single-Zone Air Sampling Smoke and Heat DetectorDescription The Xtralis XAS 1 US is a single zone air sampling heat and smoke detection unit designed for commercial and industrial environments where early and reliable detection is critical. It continuously samples air from the protected area through a network of pipes and analyzes it for smoke or heat signatures. This model provides flexible installation and dependable protection for restricted or hard to access spaces. Technical Specifications