The SD-T8 is an 8-inch rigid metal air sampling tube for Kidde SuperDuct two-wire (SD-2W) and four-wire (SD-4W) duct smoke detectors. Built for narrow ducts and tight mechanical rooms where a full-length tube won't fit, it delivers sample air straight to the detector's sensing chamber without compromising placement.
Installs from either the duct side or the sensor compartment side of the housing, and rotates in 45-degree increments so the inlet holes can be aimed correctly into the airstream regardless of duct orientation.
Brand:
Kidde Commercial
Form factor:
8-inch rigid metal air sampling tube
Compatibility:
Kidde SuperDuct SD-2W (two-wire) and SD-4W (four-wire) duct smoke detectors
Mounting:
Front-side or back-side installation, 45-degree rotation increments
Approvals:
UL, ULC (as part of SuperDuct duct smoke detector system)
What duct smoke detectors does the SD-T8 work with?
Compatible with Kidde SuperDuct two-wire (SD-2W series) and four-wire (SD-4W series) duct smoke detectors.
What size duct does the SD-T8 cover?
The 8-inch tube is built for narrow ducts and tight mechanical spaces where a longer sampling tube won't fit.
Can I install this without removing the detector cover?
Yes. The sampling tube installs from either the duct side or the sensor compartment side of the housing.
Which way do the air inlet holes face?
The inlet holes must face into the airstream. Rotate the tube in 45-degree increments to align them correctly for the duct orientation.
