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Firex 4618 AC Smoke Alarm with Battery Back-up and False Alarm Control (Upgraded to REPL-KIT)
Firex 4618 AC Smoke Alarm with Battery Back-up and False Alarm Control (Upgraded to REPL-KIT)

When ordering this, we will upgrade to a current model, a plug-n-play unit. You only need to change the mounting bracket.

You should replace ALL your old Firex alarms with new units to maintain communication between all alarms.

If you need the 10 year sealed lithium battery, please click here.

Our Price: $26.88
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Model: FIREX-4618

Technical Spec Downloads
Technical Spec

The Firex 4618 Smoke Alarm is an ionization 120V AC smoke alarm with battery back-up for single or multiple station use. It includes a Quick QuietTM False Alarm ControlTM feature which allows the user to quiet an unwanted alarm for up to 15 minutes. The 4618 has a front loading battery door, 85 decibel horn, test switch and dual purpose LED indicator; constant green “power on” confirms AC power is present and the flashing red displays alarm/battery status. The Latching LED feature clearly identifies the smoke alarm that initiated an alarm in an interconnected system with a flashing red LED. The LED will remain flashing until the test button is depressed on that unit. Our unique PowerLinkTM Tab is designed to allow the smoke alarm to be shipped with the battery already installed. It keeps the door from closing until installation, which prevents the battery from draining prematurely. The installer simply removes the PowerLinkTM Tab, closes the door and tests the unit. This results in a faster installation time. The dust cover eliminates nuisance call-backs by keeping construction dust and debris from causing false alarms.

This smoke alarm mounts to any single or 4” octagon junction box or square-to-round drywall ring and has 8” long pigtails with a Quick Connect harness for permanent connection. The 4618 is interconnectable with up to 11 other compatible Firex smoke alarms and 6 Firex heat, carbon monoxide or smoke/CO combo alarms for a total of not more than 18 Firex devices. When interconnected with other Firex smoke alarms, the unit that initiates an alarm will display a rapidly flashing red LED while the other interconnected alarm LED's remain extinguished. This Firex unit should be placed in singlefamily households or in each individual living unit of multiple-family buildings.

Features & Benefits

  • NEW Alarm Locator - Red LED flashes until reset for quick, clear identification of the initiating alarm in an interconnected system.
  • Front loading battery door - Makes battery changing simple.
  • PowerLink™ Tab - Makes installation faster and easier than ever.
  • Quick Quiet™ False Alarm Control™ - Quiets unwanted alarms for up to 15 minutes.
  • NEW Visible Low Battery Indicator - Helps locate chirping unit.
  • Interconnects with other Firex smoke and heat alarms - Compatible with other contractor preferred Firex devices.
  • NEW Ramp-Up Test Horn - Allows you to test the unit without the earpiercing horn.
  • Factory sealed housing - Prevents tampering and provides outstanding durability.
  • Dust Cover - Eliminates nuisance call-backs.
  • Attractive low-profile design - Favorite among consumers.
Item 4618
Model FADC (Firex 120-1182)
Weight 8 ounces
Operating Temperature 40° - 100°F(4.4°C to 37.8°C)
Interconnect Quantity Up to 18 Firex devices maximum: smoke alarm items 5000 (model FADC), 4418 (model AD), 4518 (model ADC), 4480 (model PAD), Firex heat alarm item 5700 (model ADH), CO alarm items 10000 (COE), 6045 (model COQ8), smoke & CO alarm item 7000 (model FADCQ) (up to 6 heat, CO, smoke CO alarms max.)
Electrical Rating 120V AC, 60HZ, 50mA max, 9 Volt Battery Back-up
Alarm Point obs. 1.35 ± 0.7%/ft..
Horn Output 85 decibels at 10 feet
Listings UL 217
Detection Type Dual Ionization Chamber
Humidity Range 10% to 93% Relative Humidity
Warranty 5-Year Limited Warranty

Firex 4618 diagram

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 1 Write a review »

  0 of 1 people found the following review helpful:
5 of 5 Easy replacement for Firex 120-1182 September 20, 2012
Reviewer: Anonymous Person from Cabin John, MD  
I had 6 of the Firex 120-1182 installed by my builder in 2002.  They were chirping and I have done all the trouble shooting so I was sure they were ready for replacement. I bought Kidde i4618 and KA-F for the replacement. I'm pleased with this replacement especially I don't need to do any rewiring.
Also, there's one nice feature about the i4618. The battery door is in the front unit rather than the back. Unlike the my old Firex, it's easier to replace the battery.

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