Silent Knight STS-2.5 Sampling Tube for 2.5' Duct

Ensure faster, more reliable smoke detection in your HVAC ductwork with the Silent Knight STS-2.5 Sampling Tube by Honeywell. Built for commercial and institutional environments, this detector accessory delivers consistent air sampling for ducts from 0.5 to 2.5 feet wide, improving fire monitoring accuracy and reducing nuisance alerts. As part of the IntelliKnight product line, the STS-2.5 is compatible with Silent Knight 6" to 2.5' duct smoke detectors, enabling straightforward integration into existing fire and security systems.

Technicians will appreciate the user-friendly installation that minimizes downtime and labor costs, while facility managers gain dependable performance backed by US manufacturing and a 3-year limited warranty. The sampling tube’s design supports critical security and surveillance infrastructure by maintaining continuous environmental monitoring and ensuring prompt detector response. Ideal for schools, healthcare, data centers, retail, and industrial sites where dependable duct smoke detection is essential.

Upgrade your fire detection strategy with the Silent Knight STS-2.5 to strengthen building safety and monitoring capabilities—order today to enhance your security and life-safety systems.

• Reliable duct smoke sampling that boosts early fire detection and reduces false alarms
• Fits 0.5–2.5' duct widths for flexible installation across HVAC systems and facility types
• Designed for seamless integration with Silent Knight 6" to 2.5' duct smoke detectors, simplifying upgrades
• Durable, US-made construction from the IntelliKnight product line for long-term security performance
• Backed by a 3-year limited warranty to protect your monitoring investment