Silent Knight SD505-DUCT Addresable Duct Housing w/SD505-APS

  • Sale
  • $147.00
  • Regular price $245.00




• Two-wire connection to SLC


• LED alarm indication and communication on sensor head


• Detects and limits the spread of smoke


• Rugged steel backbox with clear plastic cover


• Large terminal connection screws


• 3 standard tube lengths


• Installs quickly and easily


• Meets UL 286A requirements


• Complies with NFPA 72 and 101







Dimensions: 91/8” H x 7.25” W x 2.25” D


Net weight: 3lbs


Color: Gray backbox with clear cover




Alarm Current: 0.55 mA (alarm and standby)


Air Velocity


300-4000 fpm




Ambient Temperature: 32º F to 120º F (0ºC to 49ºC)


Humidity: 10 to 85% RH, non-condensing