AC Hardwired Interconnected

Replacing an old Firex™ alarm? Make the job quicker by adding a KA-F Quick-Convert Adapter when replacing another brand alarm with a Kidde manufactured alarm. Replacing an old First Alert™ or BRK™ smoke alarm? Make the job quicker by adding a KA-B Quick-Convert Adapter to each new alarm. View the specifications first, to ensure compatiblity.

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SM120X Relay Module for Smoke Alarm

The Kidde SM120X can be used to activate auxiliary warning devices such as external bells and sirens, hallway or stairway lighting. This relay will only activate when it receives a smoke signal from an interconnect Smoke Alarm.
In stock
$17.15

Worry-Free AC Wire-in Combination Smoke & Carbon Monoxide (CO) Alarm Sealed Lithium Battery Backup

  • Sealed 3V Lithium Battery Backup - 10-year* tamper proof battery eliminates need for battery replacement. Alerts user to replace alarm after 10 years of operation.
  • Voice Warning - Warns of hazard by announcing “Fire!” or “Warning, Carbon Monoxide.”
  • Intelligent Sensor Technology - Reduces nuisance alarms and offers fast response to real fires.
  • Test/Hush Button Functions - A single button that tests alarm circuitry and temporarily silences nuisance alarms.
  • Two LED Display - Red LED indicates alarm mode, Green LED indicates AC power is present.
  • Peak Level Memory - Alerts user when the unit has detected CO concentrations of 100ppm or higher.
    In stock
    $97.23

    Firex i5000 Hardwire Ionization Smoke Alarm with Alkaline Battery Backup by Kidde

    Easy Installation
    • Front battery pull tab allows battery activation without removing alarm from mounting bracket
    • Large mounting base makes mounting easier, protects surface paint from dirt and covers imperfections
    • Pre-stripped wiring harness with easy-off cap does not require stripper tool. Tinned strands increase conductivity and wire nut grip
    Fewer Callbacks
    • Large centrally located Test/Hush® alarm control button
    • Dust cover protects sensor from contaminates during construction, reducing nuisance alarms
    User-Friendly Features
    • Easy access front-loading battery door
    • Battery 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
    In stock
    $31.49

    Kidde P12040 Photoelectric Hardwire Smoke Alarm with Battery Backup, Interconnectable

    Easy Installation

    • Front battery pull tab allows battery activation without removing alarm from mounting bracket.
    • Large mounting base makes mounting easier, protects surface paint from dirt and covers imperfections.
    • Pre-stripped wiring harness with easy off cap does not require stripper tool. Tinned strands increase conductivity and wire nut grip.


    Fewer Callbacks

    • One button design for easy operation and less confusion. Operates Smart Hush„¢ and alarm test.
    • Battery run down protection will shut down alarm memory when AC power is not present, reducing low battery chirp.
    • Dust cover protects sensor from contaminates during construction reducing nuisance alarms.


    User-Friendly Features

    • Tamper resist locking feature deters alarm theft.
    • Alarm memory flashes red LED indicating which unit was the initiating alarm in interconnected system.
    • Interconnectable with up to 24 devices (of  which 18 can be initiating) including smoke, CO and heat alarms.
    In stock
    $27.99

    Kidde i12040 Hardwire Smoke Alarm with Battery Backup, Interconnectable

    Easy Installation

    • Front battery pull tab allows battery activation without removing alarm from mounting bracket
    • Large mounting base makes mounting easier, protects surface paint from dirt and covers imperfections
    • Pre-stripped wiring harness with easy off cap does not require stripper tool. Tinned strands increase conductivity and wire nut grip


    Fewer Callbacks

    • One button design for easy operation and less confusion. Operates Smart Hush™ and alarm test
    • Battery run down protection will shut down alarm memory when AC power is not present, reducing low battery chirp
    • Dust cover protects sensor from contaminates during construction reducing nuisance alarms


    User-Friendly Features

    • Tamper resist locking feature deters alarm theft.
    • Alarm memory flashes red LED indicating which unit was the initiating alarm in interconnected system
    • Interconnectable with up to 24 devices (of  which 18 can be initiating) including smoke, CO and heat alarms       
    In stock
    $22.04

    Kidde Heat Detector HD135

    The Kidde HD135F is a 120VAC Wire In Heat Alarm that responds to temperature rather than smoke.
    In stock
    $34.76