Napco FWC-DTUBE-S5 Sampling Tube Duct Detector 2.5-5

Ensure fast, reliable detection of smoke in HVAC ductwork with the Napco Security Technologies FWC-DTUBE-S5 sampling tube — an essential detector accessory for duct smoke detection systems. Designed as a steel intake sampling tube with a series of drilled holes along its length, the intake must extend the full width of the duct and have the holes facing into the airflow to deliver consistent air sampling to the detector. The kit also includes an exhaust tube approximately 7.5" long for proper airflow management.

Available in three standard lengths or cut-to-length to match site requirements, this duct air sampling tube covers a 2 to 5.5" range for flexible mounting in a wide range of HVAC configurations. As part of Napco's Detector Accessories & Bases lineup, the FWC-DTUBE-S5 improves alarm reliability and reduces false alerts by providing representative air samples to your duct detector. Ideal for security, fire detection, and facility monitoring teams, it installs quickly and integrates seamlessly into surveillance and building automation systems. Order the correct length today to enhance your duct smoke monitoring and total security strategy.

• Ensures early, reliable duct smoke sampling for improved security and monitoring
• Customizable lengths or three standard sizes to fit a variety of HVAC ducts and installations
• Durable steel construction with pre-drilled intake holes for consistent airflow sampling
• Intake tube spans full duct width and must face airflow for optimal detection performance
• Simple integration with Napco duct detectors and other detector accessories for fast installation