Kidde Battery Operated Photoelectric Smoke Alarm-21008063 - The Home Depot


Model # 21008063

Internet # 100145111

Store SKU # 376458

Battery Operated Photoelectric Smoke Alarm

Kidde Battery Operated Photoelectric Smoke Alarm

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

$13.88 / each


Model # 21008063

Internet # 100145111

Store SKU # 376458

Store SO SKU # 198092

Protect your family, home or business from smoke or fire when you install the Kidde Photoelectric Smoke Alarm. Powered by a 9-volt battery, this alarm uses photoelectric sensing technology to detect visible incendiary particles associated with smoldering fires. Simply push and hold the alarm's test button to check its circuitry, horn and battery function. A low-battery indicator sounds a chirp alert when the battery runs low. This unit mounts easily, thanks to its wireless design.

  • Utilizes photoelectric-sensing technology to detect visible fire particles
  • Sounds early warning when smoke is detected
  • Push-button testing to check electronic circuitry, horn and battery function
  • 9-Volt battery included
  • Low-battery indicator chirps as battery becomes depleted
  • Battery operation offers protection during power outages
  • Tamper-resistant locking pin to help deter theft of battery or alarm
  • Twist-off mounting plate for easy battery replacement
  • Installs in minutes due to wireless design
  • Appropriate for residential and commercial applications

Info & Guides

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Assembled Depth (in.)  1.5 in  Assembled Height (in.)  5 in 
Assembled Width (in.)  5 in 
Alarm Sensor Type  Photoelectric  Alarm Type  Smoke 
Alarm/Detector Features  Hush Feature  Commercial / Residential  Commercial / Residential 
Connector/Contact Type  None  Included  Batteries 
Power Source  Battery  Returnable  90-Day 
Voltage (volts) 
Warranty / Certifications
Certifications and Listings  1-UL Listed 


Rated 4.5 out of 5 by 10 reviewers.
Rated 4.0 out of 5.0 by For me the best choice Chose this because I wanted low cost, photoelectric, and a replaceable battery. It replaced another Kidde with a so-called 10 year sealed battery that lasted about 5 years and typically started chirping about battery failure at 3 AM. I have programmed my iPhone to remind me to preemptively replace the 9V battery in 2 years. January 20, 2015
Rated 5.0 out of 5.0 by The product comes with everything you need to hook it up. I was very surprised to find out that it comes with everything you need for a hard wired smoke detectors. It also comes with a red cap so you can paint and not have to worry about painting your smoke detector. January 17, 2012
Rated 5.0 out of 5.0 by good value hopefully we won't need it to work but bought because of design and value. July 11, 2012
Rated 5.0 out of 5.0 by Does what it says! Excellent kitchen smoke alarm! Since replacing our old one that went off any time we sauteed anything in our kitchen, this one stays quiet but goes right off when we test it with an open flame. January 17, 2012
Rated 4.0 out of 5.0 by The product was a replacement and works quite well. Quite satisfied with the purchase. Thank you for providing quality merchandise to your customers. We appreciate your store and service. June 5, 2012
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Store Exclusive. This item is available for purchase in select stores only.