System Sensor DST3 Metal Sampling Tube for DNRE and D2E, Duct Widths 2' to 4'

Deliver dependable HVAC smoke sampling and faster response times with the System Sensor DST3 Metal Sampling Tube. Engineered for commercial and institutional buildings, this InnovairFlex sampling tube provides a reliable smoke intake path for DNRE and D2E duct smoke detectors, improving monitoring and security of critical ventilation zones. The DST3’s durable metal construction and 3' length are optimized for duct widths from 2' to 4', ensuring consistent air sampling and accurate detection across typical HVAC ducts. Installing the DST3 reduces false readings and supports early-warning detection, helping protect occupants and assets while streamlining maintenance workflows. As part of the System Sensor detector accessories line, the DST3 integrates seamlessly with existing duct detection systems and supports facility surveillance and fire safety protocols. Ideal for retrofit projects or new builds where robust, maintenance-friendly equipment is required. Add the DST3 sampling tube to your HVAC smoke detection setup today to enhance monitoring reliability and overall building security.

• Robust metal construction for long service life and reduced risk of damage in commercial HVAC and security environments
• Precisely sized 3' sampling tube designed for duct widths 2'–4' to ensure consistent smoke sampling and reliable early-warning monitoring
• Direct compatibility with System Sensor InnovairFlex duct detectors (DST3 for DNRE and D2E models) for fast integration and simplified installations
• Improves overall building safety by delivering accurate HVAC smoke detection that supports fire response and security monitoring strategies
• Easy to clean and maintain, minimizing downtime and lowering long‑term maintenance costs for facility managers