Gentex | GN-503

This item has been discontinued by the manufacturer.
The suggested replacement is SC.

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