Carbon Monoxide Alarms

GN-503 Series (GN-503, GN-503F, GN-503FF)

Base Colors:

The GN-503 Series combination photoelectric smoke/electrochemical carbon monoxide alarms are single/multiple station designed as an evacuation device for use in all dwelling units, including but not limited to homes, apartments, hospitals, nursing homes hotels and motels, in compliance with ANSI/UL 217, ANSI/UL 2034, applicable IBC/IFC/IRC Standards and NFPA 72 and NFPA 720.

Standard Features

  • GN-503 Series is 120VAC with 9V battery back-up
  • Low or missing battery indicator
  • 9V battery shipped with product
  • Photoelectric smoke sensor
  • Electrochemical CO sensor
  • Push button self test feature
  • Push button functional test
  • Horn frequency 3100Hz
  • Temporal 3 sounding pattern for smoke annunciation and temporal 4 sounding pattern for CO annunciation
  • GN-503F features one (1) set of Form A/Form C contacts that activate for smoke and/or CO events
  • GN-503FF features two (2) sets of Form A/Form C contacts that activate independently for smoke and CO events
  • Quick disconnect wiring harness
  • Non-latching (self restoring)
  • End of life signal indicating CO sensor has reached depletion state
  • Mounting hardware adapts to standard junction boxes