Check the listing for details. Edwards SD-T120 120-inch Sampling Tube. Condition: New. Listed at 38.00 USD. Edwards SD-T120 120-inch Sampling Tube The Edwards SD-T120 air sampling tube works with the Edwards Super Duct detectors. SuperDuct detectors continually sample air flow in the HVAC duct and initiate an alarm condition whenever smoke detected. An alarm activated when the quantity (percent obscuration) of combustion products in that air sample exceeds the detector’s sensitivity setting. Air velocity in the duct as low as 100 ft/min. maintains adequate air flow into the sensor smoke chamber through air holes in the air sampling tube; and discharges through the exhaust tube. SuperDuct air sampling tubes installed with the inlet holes facing the airstream. Sampling tubes rotate in 45-degree increments so that air-holes aligned to allow the unit mounted in virtually any angle relative to the airflow. The sampling tube may be installed from either the duct side of the assembly; or from inside the sensor compartment, as preferred by the installer. Sampling tubes rotate in 45-degree increments so that air-holes align; to allow the unit mounted at virtually any angle relative to the air flow. Download the Specification sheet in *.pdf format Similar Item Payment We accept the following payment methods: PayPal Visa Master Card American Express Discover Please contact us if you have any questions. Shipping Services We offer the following shipping services: USPS Priority Mail (free shipping) UPS Next Day Air Saver UPS 2nd Day Air UPS Next Day Air If you would like your package shipped differently, please contact us. Please note: Even if you selected free shipping, your package may still be shipped UPS Ground International Shipping If you are outside the United States and need our articles you can contact us through an Ebay message. We offer 4 shipping options if they do not work, please contact us and we will make changes for you. We process all orders the same day when we receive the payment before 5:00 PM ET. Daily we strive to provide the best service to our buyers and give the highest satisfaction but if for some reason there is an error to receive your purchase please contact us before leaving a negative feedback. Warranty Please be aware that we are not authorized distributors. We can not guarantee the featured item will have the manufacturer's warranty or support.