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Model # 21007385

Internet # 100162348

Store SKU # 198527

Battery Operated Dual Photoelectric/Ionization Sensor Smoke Alarm

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

$24.48 /each




Model # 21007385

Internet # 100162348

Store SKU # 198527

Store SO SKU # 198092

The Kidde PI9010 Battery-Operated Dual Sensor Photoelectric and Ionization Smoke Alarm combine 2 technologies to doubly protect you, your family and home from smoke and fire. When ionization and photoelectric sensors detect either invisible or visible fire particles, this alarm sounds to notify you of their presence. This smoke alarm is a single-station unit and offers push-button testing for functionality and a hush feature to silence nuisance alarms. Thanks to a single 9-Volt battery, your home is protected even during power outages.

  • Combines photoelectric- and ionization-sensing technology in a single smoke alarm unit for dual protection
  • Early warning alarm sounds when smoke is detected
  • Hush feature to silence nuisance alarms
  • Push-button testing for circuitry and horn functionality
  • 9-Volt batteries included (21025830)
  • Battery operation assures protection during power outages
  • Tamper resistant to deter theft
  • Mounting plate twists on/off for easy attachment and battery replacement
  • LED bulbs flash to signal the alarm is functioning properly
  • Product not available for sale in the state of California

Info & Guides

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


Rated 3.8 out of 5 by 19 reviewers.
Rated 4.0 out of 5.0 by A inexpensive remedy This alarm was an easy install. Placed it in our common room with cathedral ceilings. Searched forever to find a photo and ion fire alarm. Wasn't until after I ordered this that I discovered it was a BATTERY operated NOT WIRE IN. Otherwise, the inexpensive price is safe assurance that it will go off for either detection. One thing I don't like about it, the alarm has to be removed from the fixture for the battery to be replaced. Not an easy task with our ceilings. Otherwise a good product, quick simple install, and easy testing. November 26, 2009
Rated 2.0 out of 5.0 by Stop working after 6-7 years This smoke alarm is suppose to have a 10 year life span. I bought 4 at the same time with 3 manufactured 4/2007 and 1 in 4/2008. It's 4/2015 now and none of them work anymore. Changed batteries but all are dead and I don't know how long they've been dead. I admit I don't check them regularly as you are suppose to but my guess is they died within the last 6 months when I changed the batteries during the end of daylight savings time. I'm replacing with dual sensor First Alerts. April 24, 2015
Rated 5.0 out of 5.0 by Good Detector What's to say about a smoke detector. It sits on the ceiling, flashes to let you know it's alive and hopefully will shriek loudly, should we have a fire. If it fails to do so, then I'll have something to say. It would be nice if it blinked a little more frequently to let you know it's working. Looking up, for a senior, can be painful, especially for a full minute. January 6, 2015
Rated 4.0 out of 5.0 by great features The product works well. It is loud, and somewhat sensitive, but does have a "hush" button - say, if someone forgot the cookies in the oven, and the smoke lingers even if you already opened the window. February 16, 2012
Rated 1.0 out of 5.0 by Like nuisance alarms at 2AM? Buy this one! Purchased about 1 yr ago wanting the best for my family. NOT with this product..... Just a whisp of smoke from your cooking coil?,BAM alarm goes off. A LITTLE bit of unforeseen steam out of your bathroom OR just regular cooking on your stove, AGAIN there goes the alarm. This doesn't include the MANY times of false alarms going off at all hrs of the night!! Maintenance was continually done on these to try to prevent false alarms (new batteries every 6 months, blowing out the unit with canned air every other month, just in case of dust collection), to no avail. THEN the last straw, false alarm at 2AM and could NOT get the unit to hush. Ended up pulling it. Needless to say, after a year, I'm done this this brand. Am buying the least expensive with NO photoelectric eye in it!! April 5, 2015
Rated 5.0 out of 5.0 by This is the type you need - Phtoelectric AND Ionization I've had this unit for three years now. It sometimes goes off when I'm lighting a fire in the fireplace, but that's what you expect, right? Otherwise, no "false" alarms. The battery is easy to replace. For exactly why you need a dual-sensor smoke alarm, see the video at Dateline - NBC News online. (Sorry, I can't post a URL.) Warning: Starts with heartbreaking story. February 28, 2014
Rated 2.0 out of 5.0 by not for basements placed two in basement. CONSTANT false alarms (due to humidity perhaps). August 18, 2013
Rated 5.0 out of 5.0 by All smoke detectors should be this good. It is a darn shame that the smoke detector industry does not manufacture all smoke detectors to detect both slow AND fast moving fires, using both the ionization and PHOTOELECTRIC technologies. I don't buy anything else, I've bought many of these models. They make a great gift for family and office and it is very important to detect the slow, smoldering fires. These should last for years. Who wouldn't want to spend the equivalent of $4 extra per year for this protection? December 5, 2012
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