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  Gentex 9180005 GN-503 Smoke Detector SMOKE/ CO ALARM 120VAC/ 9VDC GN-9180005
GN-503 Smoke Detector


Our Price : $53.13

UPC Code: 700217028063

Product Code: GN-9180005


Description Specifications
The GN-503 (120VAC/9VDC) Series of combination photoelectric smoke and
electrochemical sensor carbon monoxide alarms are for use as an evacuation device
in all dwelling units, including but not limited to homes, apartments, hospitals, hotels,
motels and other commercial occupancies. The GN-503 Series is listed in
compliance with UL 217, UL 2034, for installation per NFPA 720 and NFPA 72.
Available in two models, the GN-503 Series is engineered to virtually eliminate
nuisance alarms and deliver outstanding performance wherever reliable smoke and
CO protection is required.
The GN-503 Series is provided with a 9VDC alkaline battery for electrical
back-up in the event building power is lost. The battery impedance is verified and the
alarm provides a low or missing battery warning. The battery drawer provides easy
replacement without removing the unit from the wall or ceiling.
The Gentex GN-503 Series are provided with a self test and functionality test feature.
The self test notifies if the smoke/CO alarm is functioning properly or needs
attention. The functionality tests that the smoke/CO alarm is operating properly. The
self and functionality tests are in compliance with NFPA 72 and UL Standards.
Features of the combination alarm series include DUALINK differentiating tones
indicating a smoke alarm (temporal 3) or a CO alarm (temporal 4), tandem
capabilities with all Gentex tandem interconnect capable alarms. Options include a
Form A/Form C dry contacts for remote annunciation and connection to a protected
premises alarm system to provide a supervisory/trouble signal. The GN- 503
provides Temporal 3 evacuation tone for smoke alarm and all units provide
Temporal 4 tone for CO alarm annunciation. The Temporal 3 evacuation tone for
smoke alarm will take precedence of the Temporal 4 tone for CO alarm.
  • GN-503 available in 120VAC with 9VDC battery back-up
  • Horn frequency 3100 Hz (nominal)
  • Meets sensitivity requirements of UL 2034
  • Optional Auxiliary Form A/Form C relay contacts (F model)
  • Relay contacts operate on battery back-up
  • Push button self test feature
  • Push button functional test feature
  • Quick-disconnect wiring harness
  • Non-latching (self restoring) alarm
  • Fully insect protected
  • Tandem interconnect with current Gentex alarm models
  • DUALINK - differentiating tones indicating a smoke alarm
  • (temporal 3) or a CO alarm (temporal 4)
  • Red LED pulses every 30 seconds, green LED for AC power on
  • Mounting hardware adapts to standard junction boxes, including but not limited to 4x4x2-1/8 octogan.
  • Dust cover to prevent contamination during installation
  • Low or missing battery indicator
  • 1 year warranty from date of purchase
  • 5 year limited warranty on CO sensor
  • Additional Smoke Alarm Features
  • Photoelectric smoke alarm
  • Temporal 3 evacuation sounding pattern for smoke annunciation
  • Nominal 2.5% sensitivity (smoke)
  • Solid State Red LED to indicate Smoke presence
  • Additional CO Alarm Features
  • Electrochemical sensor
  • Temporal 4 sounding pattern for CO annunciation
  • End of life signal indicates CO sensor has reached depletion state and time to replace

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