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Air Products and Controls STS-2.5 is a steel sampling tube for duct-mounted smoke detectors, featuring a 5/8 in height and a 30 in (2.5 ft) overall tube length. It installs into HVAC ducts to collect air samples for SM Series smoke detectors and meets UL standards. The tube is intended for ducts approximately 1 to 3 ft wide and includes inlet holes along its length to capture airflow for detection.
Duct-mount steel sampling tube, 30 in (2.5 ft) length, 5/8 in height, UL listed, for SM Series detectors
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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