Kidde i4618AC Hardwired Smoke Alarm 4 Pack
- Hardwired with battery backup
- Interconnects up to 24 devices, 18 initiating
- Alarm memory shows which unit tripped
- Pre-stripped wiring harness, no stripper needed
- Front battery pull tab and front-loading battery door
- Dust cover and tamper-resist lock
- 40 F to 100 F operating range
Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A contractor-friendly hardwired smoke alarm built for quick installs and fewer callbacks. The sensor type and backup battery type are not listed.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B07J9KC24BModel: i4618ACCategory: Smoke Detectors & Fire Alarms
Overview
Not a sealed battery alarm, this Kidde unit wires into household power with a battery backup that activates by a front pull tab. A pre-stripped harness, a large mounting base and a dust cover speed installs on new construction.
Install shortcuts and alarm memory save time on multi-unit jobs and when tracking down nuisance alarms. The listing skips the sensor type and backup battery details.
Who it's for
Contractors and landlords wiring several alarms at once who want fast, clean installs. Homeowners choosing between sensor types will need to look elsewhere for that detail.
Pros and cons
- Battery activates without removal
- Alarm memory pinpoints the trigger
- Large interconnect capacity
- Dust cover for construction
- Sensor type not listed
- Backup battery type not stated
- Needs existing wiring
Performance notes
Interconnect wiring lets one alarm set off every linked unit, and alarm memory flashes on the one that started it. The dust cover blocks construction debris from the chamber until the home is finished.
Specifications
| Brand | Kidde |
|---|---|
| Model | i4618AC |
| Power Source | Hardwired with battery backup |
| Interconnect | Up to 24 devices (18 initiating): smoke, CO, heat |
| Operating temperature | 40 F to 100 F |
| Installation | Pre-stripped wiring harness, large mounting base, front battery pull tab |
| Features | Alarm memory, test/hush button, tamper-resist lock, dust cover |
Frequently asked questions
What comes in the Kidde i4618AC pack?
The listing describes alarms with a pre-stripped wiring harness and mounting base; the 4 pack count appears in the title.
How many alarms can the Kidde i4618AC interconnect with?
Up to 24 devices, of which 18 can be initiating, including smoke, CO and heat alarms.
Do I need to remove the Kidde i4618AC to activate the battery?
No. The front battery pull tab activates it while mounted.
How do I find which alarm went off?
Alarm memory flashes the red LED on the initiating unit.