The sampling tube is identified by a series of air inlet holes on the tube. The sampling tube is always installed with the air inlet hole facing into the air flow. For duct widths greater than 18 inch, sampling tubes must be purchased separately. The recommended length is specified below. It is also recommended that the sampling tube length extend at least 2/3 across the duct width for optimal performance. Sampling tubes over 3ft long must be supported at the end opposite the duct smoke detector.
Name : System Sensor ST-10 Metal Sampling Tube for Duct widths 2'-4' , System Sensor
Category : Detector Parts & Accessories
UPC Code : 999999382831
Country of Origin : Mexico. Country of origin is subject to change.
ADI Part Number : BK-ST3
Brand Name : System Sensor
Manufacturer : Honeywell International, Inc
Manufacturer Part Number : ST3
Product Model : ST-3
Product Name : ST-3 Sampling Tube
Product Type : Sampling Tube
Device Supported : Duct Smoke Detector
Color : Silver
Material : Metal
Limited Warranty : 3 Year