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Model # 21007582

Internet # 202029418

Hardwired 120-Volt Inter Connectable Smoke Alarm with Battery Backup

This item has been discontinued.
The Home Depot no longer carries this specific product.

$17.27 /each



Model # 21007582

Internet # 202029418

Kidde i5000 is an AC/DC powered ionization smoke alarm that operates on a 120-Volt power source with 9-Volt alkaline battery back-up. Front load battery feature is easy access to the battery; you will not need to remove the alarm from the mounting bracket. When you need to replace battery simply slide the door, remove low battery, and replace with new battery and slide door closed. This alarm can be interconnected with other Kidde devices in a multiple station arrangement.

  • Kidde model i5000 utilizes ionization sensing technology and ionization sensing alarms may detect invisible fire particles associated with flaming fires sooner than photoelectric alarms
  • Alarm sounds at 85 decibels
  • Hush button feature allows you to immediately silence the alarm
  • 9-Volt alkaline battery included (21025730)
  • Large mounting base makes mounting easier, protects you surface paint from dirt and covers imperfections
  • Red LED will flash every 30-40 seconds to indicate that the smoke alarm is operating properly
  • When the alarm senses products of combustion and goes into alarm the red LED will flash one flash per second
  • Kidde model i5000 is equipped with an alarm memory that provides a visual indication when an alarm has been activated

Info & Guides

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Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Alarm Sensor Type 
Alarm Type 
Alarm/Detector Features 
Battery Back-Up,Hush Feature,Interconnected 
Battery Back-Up 
Battery Power Type 
Battery Size 
Commercial / Residential 
Commercial / Residential 
Connector/Contact Type 
Electrical Product Type 
Smoke Detector 
Power Source 
Voltage (volts) 
Warranty / Certifications
Certifications and Listings 
1-UL Listed 


Rated 4.1 out of 5 by 15 reviewers.
Rated 5.0 out of 5.0 by FireX smoke alarm The FireX smoke alarm was easy and straight forward to install. July 17, 2015
Rated 1.0 out of 5.0 by Would not stop chirping Replaced battery and it was OK for a few hours and started chirping. Repeated a second time and the same thing happened. So buying a new one. The same model (different number) to be compatible with others and fit on the base already installed. 2.5 years since installation. January 6, 2015
Rated 4.0 out of 5.0 by Different Wiring Harness & Mounting Bracket I bought 8 of these to replace a group of 10-year-old smoke detectors of the same brand and equivalent Kidde/Firex model. Thought I'd be able to simply unplug the old ones and plug in the new ones. Wrong!! The current version has both a new/different wiring harness and a new/different mounting bracket. Still not a difficult task, but not nearly as quick or easy as I expected. Another case of unnecessary "improvements" making life more difficult. September 21, 2011
Rated 1.0 out of 5.0 by They don't seem to set-up/work properly, very difficult. I have five of these 'interconnected' smoke-alarms in my home. One started chirping...I guessed it needed a battery. I installed a battery... the smoke-alarm kept chirping. I bought a new battery and installed it.... the smoke-alarm kept chirping. How long will this go on... it seems like "for eternity"! I find devices that don't work per the advertisemnets and directions very disheartening. I would not again, buy these detectors. PS: its still chirping... even with a new battery!!!! I may have to 'cut' the wires... and then replace the smoke-alarms PPS: I'm a qualified fire protection engineer (which makes this problem into a serious situation for me)... how can I recommend such a device?). April 27, 2012
Rated 5.0 out of 5.0 Super easy installation I had to replace my existing hard wired smoke alarm system due to false alarms (system about 11 years old). The kit comes with everything you need, including batteries! It took about 1 hour to replace 5 smoke alarms with most of that time moving the stepladder around. Would highly recommend this product. June 18, 2013
Rated 2.0 out of 5.0 by disappointed This is the third replacement of the same item, in which the second was also purchased at Home Depot. The quality of the item is poor, as the latch breaks too easily, which needs to be opened and closed at every six month battery change. Unfortunately due to fire codes, it is placed high up on the ceiling, so it's not a matter of just changing out the batteries, because it means you have to hire someone everytime with a very tall ladder, if you have tall ceilings. I would recommend a smoke alarm of better quality, if it exists, and one that is compatible with the system. March 4, 2014
Rated 5.0 out of 5.0 by smoke alarm great product. nothing else to say. nothing to say. December 10, 2014
Rated 5.0 out of 5.0 by Smoke Alarm Easy replacement for malfunctioning unit. Compatible with other existing units. November 6, 2014
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