Silent Knight SD505-DUCTR Duct Smoke Detector w/ Housing & Relay

  • JMAC SKU: SILENT-KNIGHT-SD505-DUCTR
$434.00
+ Free Shipping
In Stock
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JMAC_ID:
200003722
df_manual_boost:
1.75
The SD505-DUCTR is an addressable duct smoke detector with a relay module and SD505-APS sensor pre-installed in a heavy duty housing. The SD505-DUCTR is used for detecting smoke and products of combustion present in air moving through an HVAC air handling system.

When smoke is detected in a duct, the unit sends a signal to the IntelliKnight control panel, which, depending on programming and wiring, will proceed to turn off fans, blowers, and other devices.

UPC: 783196012643
Also known as: SK-SD505DCTR, SD505DUCTR

Technical Specifications:
  • Current: .55 mA (alarm and standby)
  • Air Velocity: 300 to 4000 fpm
  • Ambient Temperature: 32ºF to 120ºF (0ºC to 49ºC)
  • Humidity: 10 to 85% RH
  • Dimensions: 9 1/8” H x 7.25” W x 2.25” D
  • Color: Gray backbox with clear cover


For more information about the Silent Knight SD505-DUCTR, please contact us.
  • Two wire connection to SLC
  • Detects and limits the spread of smoke
  • Rugged steel back box with clear plastic cover
  • Three standard tube lengths
  • Installation template included
  • UL listed

2 Reviews

  • 5
    SILENT-KNIGHT-SD505-DUCTR

    Posted by 183420 on Apr 15th 2022

  • 5
    SILENT-KNIGHT-SD505-DUCTR

    Posted by 175072 on Sep 10th 2021