Silent Knight STS-5.0 Duct Smoke Detector Sampling Tube, to use with SD505-ADHR and SD505-ADTS

Ensure fast, reliable duct smoke detection with the Silent Knight by Honeywell STS-5.0 duct sampling tube. Designed specifically as a detector accessory for the SD505 series, this sampling tube delivers precise air sampling in ducts 2.5–5 feet wide, giving facility managers and security integrators confident early-warning detection that improves overall life-safety performance. Compatible with SD505-ADHR and SD505-ADTS detectors, the STS-5.0 integrates smoothly into existing HVAC and fire monitoring systems to reduce false alarms and speed incident verification.

Built for commercial and institutional environments, the STS-5.0 combines rugged US-made construction with an installation-friendly design that lowers labor and maintenance time. Its optimized sampling length and placement help maintain consistent sensitivity across the duct, supporting building security, surveillance, and environmental monitoring strategies. Whether you’re upgrading a university campus, hospital, or corporate facility, this sampling tube boosts the effectiveness of your smoke detection infrastructure.

For reliable duct monitoring and simplified integration with SD505 detectors, choose the Silent Knight STS-5.0—order today or contact our team for application guidance and installation best practices.

• Seamless integration with SD505-ADHR and SD505-ADTS for reliable smoke sampling and faster event response
• Optimized for ducts 2.5–5 ft wide to deliver accurate, early detection and reduce false alarms in HVAC systems
• Durable, US-made construction minimizes downtime and lowers long‑term maintenance costs
• Simple installation and service access save labor time during deployment and routine inspections
• Enhances building security and environmental monitoring by improving smoke detection coverage in ductwork