Model # 21010408-N

Internet #205465967

Kidde Worry Free Hardwired Combination Smoke and CO Alarm with Voice and Lithium 10-Year Battery Back Up (3-Pack)


Worry Free Hardwired Combination Smoke and CO Alarm with Voice and Lithium 10-Year Battery Back Up (3-Pack)

  • Hardwired 120-Volt
  • 10-year battery back up
  • Combination smoke/CO sensing
$16255 /package

Frequently Bought Together

Product Overview

Kidde Hardwired-Interconnected 10 Year Combination Smoke and Carbon Monoxide Alarm feature 2 sensors in 1 unit. The alarm is suitable as a single station and/or multiple station (24 devices) alarm. This alarm contains a 10-year lithium battery backup, removing the need to replace batteries in a hardwired unit and carries a limited 10 year warranty.

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Name 120-Volt Hardwired Combination Smoke and CO Photo Electric Alarm with Voice (3-Pack) Worry Free Hardwired Combination Smoke and CO Alarm with Voice and Lithium 10-Year Battery Back Up (3-Pack) Battery Operated Combination Smoke and CO Alarm with Voice Alert (6-Pack) Protect Battery Smoke and Carbon Monoxide Detector (3-Pack)
Brand Kidde Kidde Kidde Nest
Ratings (54) (99) (36) (0)
Alarm Type Carbon Monoxide,Smoke Carbon Monoxide,Carbon Monoxide,Smoke Carbon Monoxide,Smoke Carbon Monoxide,Smoke
Power Source Hardwired Hardwired Battery Battery
Alarm Sensor Type Photoelectric Ionization Ionization Dual-Sensor
Alarm/Detector Features Battery Back-Up,Hush Feature,Interconnected,Value Pack,Voice Alert 10-Year Battery,Battery Back-Up,Hush Feature,Interconnected,Tamper Resistant,Value Pack,Voice Alert Hush Feature,Value Pack,Voice Alert Hush Feature,Wi-Fi Enabled
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Warranty / Certifications

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Customer Questions & Answers

What type of smoke detector is in this unit....ionization or photoelectric?

Asked by: ALinNC
CAUTION: MASSACHUSETTS requires a photoelectric alarm in all residential situations. This ionization device has limited use in MA and in the few situations where it could be installed, it would need a photoelectric alarm mounted next to it.
Answered by: wsfdgreen
Date published: 2017-03-27

can the battery be changed??

after ten years
Asked by: john
Not without breaking open the unit and voiding the warranty. Sealed unit is not designed for user battery replacement. Battery life > 10 years and built-in warranty timer means you should never have to replace the battery for the useful warranted life of the unit (10 years).
Answered by: MechMan
Date published: 2015-11-24

How many wires in connector 2 or 3?

Product Title, Description, & Specs state this unit is "Hard-wired", however Specs then list the "Connector Type" as "None". Does this unit have 2-wire or 3-wire connection?
Asked by: kim
Answered by: MM
Date published: 2016-12-06

I have a 2 story colonial which is hardwired with regular smoke dectectors on all levels. One in basement, one on main floor and one in each room

upstairs as well as the hallway upstairs. How many smoke and co detectors are necessary in this design? And can the Kidde worry free be installed where I now have BRK Electronics model 4120B?
Asked by: bigJim
I replaced all three of mine with the the hard wired combination smoke and co alarm with voice and ten year lithium battery. No more night time beeps when the 9 volt expires!
Answered by: BAT3
Date published: 2016-05-11
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