Gentex GN-503F Smoke & Carbon Monoxide Alarm, 120V Hardwired Interconnectable Photoelectric w/9V Battery Backup, T3 & T4 Horns & Form A/C Relay Contacts (918-0007-002)
Key features
- •Horn frequency 3100 Hz (nominal) Meets sensitivity requirements of ANSI/UL 2034 One (1) set of Form A/Form C contacts that activate for smoke and/or 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 4
BrandGentex
CategorySecurity & Surveillance
Gentex GN-503F Smoke & Carbon Monoxide Alarm, 120V Hardwired Interconnectable Photoelectric w/9V Battery Backup, T3 & T4 Horns & Form A/C Relay Contacts (918-0007-002)
List Price: $107.27$96.54DEALYou Save: $10.73 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 25, 2026In Stock (9)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection
Customer Reviews
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and its a extremely good idea for homes
Ed•February 1, 2015
Beware, this smoke detector does not meet NFPA 72 2010 requirements for use in bedrooms, which require a 520HZ square wave horn. A 3000 hz signal is ineffective at waking sleeping people, children or elderly adults in particular. Search NFPA 72 2010 and 2013.
The requirement became effective the first of 2014 for commercial buildings, and its a extremely good idea for homes.
The requirement became effective the first of 2014 for commercial buildings, and its a extremely good idea for homes.
