• 4" Addressable Base

The SD505-PHOTO is an addressable photoelectric smoke detector suited to detect dense smoke from fire involving materials such as soft furnishings, plastic, foam or other similar materials which tend to smolder and produce large visible particles.The SD505-PHOTO is compatible with 5700, 5808, 5820XL, and 5820XL-EVS IntelliKnight addressable fire alarm control panels programmed for Hochiki protocol.

  • Automatic compensation for sensor contamination
  • Low profile, 2 inches including base
  • Uses digital communication protocol
  • Simple and reliable addressing

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4" Addressable Base

  • Product Code: SILENT KNIGHT:SD505-4AB

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