Kidde 21007584 I4618 Firex Hardwire Ionization Smoke Detector with Battery Backupwhite

Price: $70.00 - $58.99
(as of Sep 21, 2026 20:26:47 UTC – Details)


Ac/dc direct wire smoke alarm with battery backup front access battery door simplifies changing batteries interconnect able with up to 18 Firex devices 85 decibel alarm model#: I4618.
Tamper resist locking feature deters alarm theft
Alarm memory flashes red LED indicating which unit was the initiating alarm in interconnected system.
TBattery backup provides protection in case of power failure
Interconnectable with up to 24 devices (of which 18 can be initiating) including smoke, CO and heat alarms. See user’s guide for complete instructions.
Front battery pull tab allows battery activation without removing alarm from mounting bracket.
Customers find the smoke detector easy to install and appreciate that it comes with all necessary plugs. Moreover, the product receives positive feedback for its accuracy and reliability. However, opinions about value for money are mixed, with some customers considering it good value while others view it as an expensive scam.