Accessory (sampling tube) · Duct Accessories
DST3 Metal Sampling Tube, Duct Width 0.6m to 1.2m
- Type
- Accessory (sampling tube)
- Duct width range
- 2 ft to 4 ft (0.6 to 1.2 m)
- Duct width coverage
- 2 ft – 4 ft (0.6 – 1.2 m)
- duct_width_range
- 2 ft to 4 ft (0.6 to 1.2 m)
- compatibility
- For use with Conventional and Intelligent Duct Smoke Detectors
- approvals
- UL listed
- material
- Metal
Overview
What it is and how it fits the system.
The DST3 is a metal sampling tube for duct smoke detectors, sized for duct widths from 2 ft to 4 ft (0.6 to 1.2 m). It is supplied as a sampling tube accessory for duct detection installations.
Technical overview
The DST3 is a metal sampling tube for duct smoke detectors, sized for duct widths 2 ft to 4 ft (0.6 to 1.2 m). It is designed as an accessory for use with both Conventional and Intelligent Duct Smoke Detectors, providing a reliable means of air sampling within HVAC systems. The tube is UL listed and constructed from durable metal to withstand typical duct environments.
Its design specifies a minimum extension of at least two-thirds across the duct width to ensure effective smoke detection coverage. The DST3 is compatible with the D2 2-Wire photoelectric low-flow duct smoke detector, as referenced in its ordering information. Installation and physical connections should follow the guidelines in the associated installation manual. The product supports consistent performance in commercial ventilation applications where precise air sampling is required for early fire detection.
Specifications
Full technical data for this part.
| Description | Metal sampling tube duct widths 2 ft. to 4 ft. (0.6 to 1.2 m) |
|---|---|
| Duct width range | 2 ft to 4 ft (0.6 to 1.2 m) |
| Duct width coverage | 2 ft – 4 ft (0.6 – 1.2 m) |
| duct_width_range | 2 ft to 4 ft (0.6 to 1.2 m) |
| compatibility | For use with Conventional and Intelligent Duct Smoke Detectors |
| approvals | UL listed |
| material | Metal |
| Duct width | 2 ft to 4 ft (0.6 to 1.2 m) |
| Compatible duct width | 0.6 to 1.2 m |
| sampling_tube_minimum_extension | at least 2/3 across the duct width |
Specifications sourced from manufacturer documentation.
Specifications per manufacturer documentation, subject to change — E&OE. Spotted an inaccuracy? Let us know
Optional accessories
Optional additions — this product works without them.
Duct detector housing complete with B501AP base for Addressable MI-PSE-S2 or MI-PSE-S2I detectors. (Detector not supplied). Requires DSTXX duct sampling tube and MI-PSE-S2 or MI-PSE-S2I detectors.
Used by / houses: Duct detector housing complete with B501AP base fo