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  • Allows air duct sampling using standard detector or sensor
  • Fits either square or round section ducting (with additional brackets)
  • One-tube air sampling system
  • Test hole on cover
  • Simple installation / maintenance
  • Installer-friendly connection of cables
  • Supplied with 1 x 0.6m pipe
  • Accepts a range of Hochiki addressable or conventional smoke sensors/detectors (sold separately)

The SDP-3 is a Duct Probe housing allowing a standard photoelectric smoke detection device, either a conventional detector or an analogue sensor, to be mounted on the outside of an air duct for the purpose of monitoring the air within the duct. For installations where possible condensation could arise an optional cover is available (SDP-3 COVER)

Using an aspirating technique, the air within the duct is drawn via a pipe into the duct probe’s housing. This allows constant sampling with a standard, LPCB approved smoke detector, which makes smoke detection within the duct simple, effective and easy to maintain.

More Information
Color Green
Manufacturer Hochiki
Type of Tecnology Smoke optician, Smoke detector
IP Rate IP54
Analog Protocol No Protocol - Conventional
addressing No
Intrinsically Safe No
Operating Temperature Range -20 °C to + 50 °C
Relay No
Marine Approved No
SIL Approved No
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pdf SDP3 Installation Instructions SDP3 Installation Instructions pdf 1.2 MB Download
pdf SDP-3 Product Specification SDP-3 Product Specification pdf 89.4 KB Download
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