Fire-Lite D355PL

The Fire-Lite-D355PL is a non-relay, Duct Smoke Detector with a photoelectric sensor. The sensor includes a SD355R remote test capable addressable low-profile photoelectric smoke detector.

Able to operate in a broad temperature range, the D355PL is a versatile solution for a multitude of environments. Additional wiring space is providing by a 3/4″ knockout. The detector mounts easily to a round or rectangular duct.


  • Photoelectric, integrated low-flow technology
  • Air velocity rating from 100 ft/min to 4,000 ft/min (0.5 m/s to 20.32 m/s)
  • Versatile mounting options: square or rectangular configuration
  • Broad ranges for operating temperature (-4F to 158F, -20C to 70C) and humidity (0% to 95% non-condensing)
  • Patented sampling tube installs from front or back of the detector with no tools required
  • Cover tamper signal
  • Easily accessible code wheels on sensor head (sold separately)
  • Clear cover for convenient visual inspection
  • Remote testing capability
  • Accommodates the installation of an addressable relay module, sold separately, (CRF-300) for applications requiring a Form-C relay


  • Weight: 1.6 lb (0.73 kg)
  • Operating Temperature Range: -4F to 158F (-20C to 70C)