Home / Detectors / Combination Smoke & Carbon Monoxide Detectors / Gentex GN-503FF Gentex GN-503FF $99.33 Combination Smoke/CO Alarm, 120VAC, 9VDC Battery Back-Up, Two (2) Sets Form A/Form C Relay Contacts Availability: Estimated 6 - 8 Business Days Gentex GN-503FF quantity Add to cart Factory NewBrand: Gentex FireAlarm.com Part #: 050886 Categories: Combination Smoke & Carbon Monoxide Detectors, Detectors, In Stock - NX Manufacturer Part #: GN-503FF Tags: AD, NX Description Specifications Features Resources Reviews (0) Description The GN-503 (120VAC/9VDC) Series of combination photoelectric smoke and electrochemical sensor carbon monoxide alarms are for use as evacuation devices 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 ANSI/ UL 217, ANSI/UL 2034, for installation per NFPA 720 and NFPA 72. Available in three 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-503F features one (1) set of Form A/Form C contacts that activate for smoke and/or CO events. The GN-503FF features two (2) sets of Form A/Form C contacts that activate independently for smoke and CO events. Both the GN-503F and GN-503FF provide a connection to a protected premises alarm system to provide a supervisory/ trouble signal. Information Weight 1.00 lbs Dimensions 1.80 × 6.25 × 6.25 in Series GN-503 Series: Combination Photoelectric Smoke & Carbon Monoxide Alarm Condition New Features GN-503 available in 120VAC with 9VDC battery back-up Horn frequency 3100 Hz (nominal) Meets sensitivity requirements of ANSI/UL 2034 F Model: One (1) set of Form A/Form C contacts that activate for smoke and/or CO events FF Model: Two (2) sets Form A/Form C contacts that activate independently for smoke and CO events. 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 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 octagon 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 ResourcesGN-503 Series; 120VAC/9VDC Single/Multiple Station Carbon Monoxide Alarm Gentex – Data Sheet GN-503 Series; Combination Photoelectric Smoke & Carbon Monoxide (CO) Alarm Gentex – Installation Instructions Reviews There are no reviews yet. Be the first to review “Gentex GN-503FF” Cancel replyYou must be logged in to post a review.