Model # 21007385

Internet #100162348

Store SKU #198527

Store SO SKU #198092

Kidde Battery Operated Dual-Sensor Photoelectric/Ionization Smoke Alarm
0047871420070

Kidde

Battery Operated Dual-Sensor Photoelectric/Ionization Smoke Alarm

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Product Overview

The Kidde Battery-Operated Dual Sensor Photoelectric and Ionization Smoke Alarm combine 2 sensor technologies to double the protection for 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.

  • Dual sensor-photoelectric/ionization
  • Warning alarm sounds when slow smoldering or fast-flaming fires are detected
  • Hush feature to silence nuisance alarms
  • Photoelectric sensor - may detect visible particles (associated with smoldering fires) sooner than ionization alarms
  • Ionization sensor - may detect invisible fire particles (associated with flaming fires) sooner than photoelectric alarms
  • Test/reset button - tests smoke alarm circuitry and horn
  • Tamper resistant to deter tampering
  • 9-Volt battery included (21025830)
  • LED bulbs flash to signal the alarm is functioning properly
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Customer Questions & Answers

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Asked by: John
Hello John. This model is not available through Home Depot at this time. We are Kidde Product Support at 1-800-880-6788. Thank you for your interest.
Answered by: Kidde Expert
Date published: 2016-11-11

Where would the best place to set the smoke detector up?

Where would the best place to set the smoke detector up?
Asked by: Lukester
Hello Lukester. We recommend to locate the first alarm in the immediate area of the bedrooms. Try to monitor the exit path as the bedrooms are usually farthest from the exit. If more than one sleeping area exists, locate additional alarms in each sleeping area. Locate additional alarms to monitor any stairway as stairways act like chimneys for smoke and heat. Locate at least one alarm on every floor level. Locate an alarm in every sleeping room. Locate an alarm in every room where electrical appliances are operated (i.e.portable heaters or humidifiers). Locate an alarm in every room where someone sleeps with the door closed.The closed door may prevent an alarm not located in that room from waking the sleeper. Smoke, heat, and combustion products rise to the ceiling and spread horizontally. Mounting the smoke alarm on the ceiling in the center of the room places it closest to all points in the room. Ceiling mounting is preferred in ordinary residential construction. For mobile home installation, select locations carefully to avoid thermal barriers that may form at the ceiling. When mounting an alarm on the ceiling, locate it at a minimum of 4” (10 cm) from the side wall When mounting the alarm on the wall, use an inside wall with the top edge of the alarm at a minimum of 4” (10 cm) and a maximum of 12” (30.5 cm) below the ceiling. Put smoke alarms at both ends of a bedroom hallway or large room if the hallway or room is more than 30 feet (9.1 m) long. Install Smoke Alarms on sloped, peaked or cathedral ceilings at or within 3ft (0.9m) of the highest point (measured horizontally). NFPA 72 states: “Smoke alarms in rooms with ceiling slopes greater than 1 foot in 8 feet (.3m in 2.4 m) horizontally shall be located on the high side of the room.” NFPA 72 states: “A row of detectors shall be spaced and located within 3 ft (0.9m) of the peak of the ceiling measured horizontally” Avoid putting the alarm in the garage. Products of combustion are present when you start your automobile. Avoid locations that are in an area where the temperature may fall below 40ºF (4.4°C) or rise above 100ºF (37.8°C), such as garages and unfinished attics. Avoid dusty areas. Dust particles may cause nuisance alarm or failure to alarm. Avoid very humid areas (greater than 85% R.H.). Moisture or steam can cause nuisance alarms. Avoid putting the alarm in insect-infested areas. Smoke alarms should not be installed within 3 ft (.9m) of the following: the door to a kitchen, the door to a bathroom containing a tub or shower, forced air supply ducts used for heating or cooling, ceiling or whole house ventilating fans, or other high air flow areas. Kitchens. Normal cooking may cause nuisance alarms. If a kitchen alarm is desired, it should have an alarm silence feature or be a photoelectric type. We are Kidde Product Support at 1-800-880-6788.
Answered by: Kidde Expert
Date published: 2016-11-10

I don't see a replacement for this item that includes a CO Sensor.

I'm looking for a 10 Year Lithium Battery Operated Dual Photoelectric/Ionization Carbon Monoxide Combination Alarm. Does that exist?
Asked by: ICladius
I researched this and checked with Consumer Reports; there are no dual sensor smoke alarms with a CO sensor too. You either have to buy the CO sensor separately from the dual sensor smoke alarm or purchase a CO sensor with either a photoelectric or ionization sensor and purchase another smoke alarm to cover the smoke alarm sensor you don't have. I've chosen to do the former.
Answered by: beachmom
Date published: 2015-11-05

how long does the battery last

how long does the battery last for this model of smoke alarm
Asked by: Nando
Change out yearly
Answered by: Grannysmith
Date published: 2016-12-27
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Customer Reviews

Battery Operated Dual-Sensor Photoelectric/Ionization Smoke Alarm is rated 3.9 out of 5 by 30.
Rated 5 out of 5 by from Very good and works well detector I replaced my one that was 5 years old with an photoelectric/ionization smoke alarm because I want my whole family to be safe. It is a smoke, heat and Fire sensor and that is want I need. Most deaths occur due to smoke inhalation not fire.
Date published: 2016-11-15
Rated 5 out of 5 by from This is the third one of these I bought and installed in my home. These smoke detectors are simpl... This is the third one of these I bought and installed in my home. These smoke detectors are simple 9 volt hush button and test button features. Simple install two included screws in bracket and just attach unit.
Date published: 2016-12-26
Rated 4 out of 5 by from Replacement Smoke Detectir This is an exact replacement for one of the three units (1 on each floor) that were interconnected. This replaces one that failed after 15 months of service. Manufacturer is sending another replacement to me anyway
Date published: 2016-11-08
Rated 5 out of 5 by from Feel safer! They work great with no false alarms yet! Easy to install and without having to wire them together, when one goes off they ALL go off.
Date published: 2017-01-03
Rated 1 out of 5 by from DISAPPOINTED WAY TOO MANY false alarms ALWAYS in the middle of the night! Clean it quite often but still false alarms .Extremely annoying!
Date published: 2016-10-18
Rated 5 out of 5 by from Easy to install. Blinking light indicates unit is functioning. Newly purchased so no long-term ... Easy to install. Blinking light indicates unit is functioning. Newly purchased so no long-term experience.
Date published: 2017-01-27
Rated 5 out of 5 by from Easy to install. Easy to mount. Easy to install. Easy to mount.
Date published: 2017-02-02
Rated 4 out of 5 by from 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.
Date published: 2009-11-26
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