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Kidde Ionization Smoke Alarm - i12040A (formerly 1275)

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Special Price $11.24

Regular Price: $13.94

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Special Price $11.24

Regular Price: $13.94

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    Product Description

    This product is the replacement for Kidde 1275. Please read information to ensure a compatible installation.

    The Kidde i12040A is an AC/DC powered, ionization smoke alarm that operates on a 120V power source with 9V battery backup. This alarm uses ionization sensing technology. Ionization sensing alarms may detect invisible fire particles (associated with flaming fires) sooner than photoelectric alarms. Photoelectric sensing alarms may detect visible particles (associated with smoldering fires) sooner than ionization alarms. Kidde strongly recommends that both ionization and photoelectric smoke alarms be installed to help insure maximum detection of the various types of fire that can occur within the home.

    This smoke alarm is available in a 6-piece cut case with tray for easy display as well as a 6-piece bulk pack for contractors and property owners. This unit is a UL Listed product with a 10-year limited warranty.


    • Ionization Sensing Technology.
    • One button design (operates Hush™ and test).
    • Large mounting base.
    • 9V Battery Backup (included).
    • Tamper resist feature.
    • Alarm memory.
    • Pre-stripped wiring harness with tinned strands.


    General Characteristics

    Power Source120VAC (80mA) with 9V Battery Back Up
    Audio Alarm85dB at 10ft
    Temperature Range40˚F (4.4˚C) to 100˚F (37.8˚C)
    Humidity Range5%-95% relative humidity (RH)
    Size5.6” in diameter x 1.55” depth
    Weight.5 lb
    InterconnectsUp to 24 Kidde devices
    WiringQuick-connect plug with 8” pigtails
    LEDRed, 4 modes of operation, Green , indicates AC power
    Warranty10 year limited

    Customer Reviews 2 item(s)

    Installed just find in old base. Very happy to find this replacement. Service was great.
    MYy unit was over 13 years old. Replaced battery, unit keep going off. Ordered this unit to replace old one. No problem. Working just find. Will order4 more to replace the ones that are in use.
    Overall Rating
    Review by Woodie / (Posted on 2/22/2017)
    Replacement units
    I bought four units to replace the old ones installed ten years ago than we're going off constantly and even though the model 1275 shown in the picture were exactly the new ones received are a bit different in shape. The difference in shape had no negative effect in the form, fit and function, I was able to install the new ones using the old base and wiring and they working perfectly.
    Overall Rating
    Review by Carlos / (Posted on 9/29/2015)
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