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First Alert Alarm Combo DC Slim SMCO210 Clam Tray: Smoke & Carbon Monoxide Detector, Fire Alarm, Lithium Battery, White - 2 of 4First Alert Alarm Combo DC Slim SMCO210 Clam Tray: Smoke & Carbon Monoxide Detector, Fire Alarm, Lithium Battery, White - 3 of 4First Alert Alarm Combo DC Slim SMCO210 Clam Tray: Smoke & Carbon Monoxide Detector, Fire Alarm, Lithium Battery, White - 4 of 4
First Alert Alarm Combo DC Slim SMCO210 Clam Tray: Smoke & Carbon Monoxide Detector, Fire Alarm, Lithium Battery, White - 1 of 4

First Alert Alarm Combo DC Slim SMCO210 Clam Tray: Smoke & Carbon Monoxide Detector, Fire Alarm, Lithium Battery, White

$39.49

In Stock

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At a glance

About this item

Highlights

  • First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency
  • Provides reliable 2-in-1 protection against both smoke and carbon monoxide in an easy to install alarm
  • 10-Year sealed battery eliminates battery replacements and low battery chirps for the life of the alarm
  • End-of-life warning lets you know when it’s time to replace the alarm
  • Slim profile design is half the depth of a standard alarm
  • Test/silence button for efficient testing to ensure alarm is working properly 

Description

The First Alert SMCO210 10-Year Sealed Battery Combination Smoke & Carbon Monoxide Alarm with Slim Profile Design uses First Alert's Precision Detection advanced sensing technology and meets new industry standards. This 2-in-1 alarm provides convenient protection against both fire and carbon monoxide (CO). Also equipped with a 10-year sealed battery to eliminate the need for battery replacements and low battery chirps.
Dimensions (Overall): 5.62 Inches (H) x 5.62 Inches (W) x 1.3 Inches (D)
Weight: .57 Pounds
Package Quantity: 1
Requires Hardwired Installation: No
Battery: 1 Non-Universal Lithium Ion, Required, Packaged With
Warranty: 10 Year Limited Warranty. To obtain a copy of the manufacturer's or supplier's warranty for this item prior to purchasing the item, please call Target Guest Services at 1-800-591-3869
TCIN: 90075125
UPC: 029054022073
Item Number (DPCI): 085-14-5529
Origin: Imported
If the item details aren’t accurate or complete, we want to know about it.

Shipping details

Estimated ship dimensions: 1.71 inches length x 6.68 inches width x 8.52 inches height
Estimated ship weight: 0.52 pounds
We regret that this item cannot be shipped to PO Boxes.
This item cannot be shipped to the following locations: American Samoa (see also separate entry under AS), Guam (see also separate entry under GU), Northern Mariana Islands, Puerto Rico (see also separate entry under PR), United States Minor Outlying Islands, Virgin Islands, U.S., APO/FPO, Alaska, Hawaii

Return details

This item must be returned to any Target store.
This item must be returned within 90 days of the date it was purchased in store, delivered to the guest, delivered by a Shipt shopper, or picked up by the guest.
See the return policy for complete information.

Q: How is the alarm tested for functionality?

submitted by AI Shopping Assistant - 2 months ago

  • A: The alarm has a test/silence button for easily checking if it is working properly.

    submitted byAI Shopping Assistant - 2 months ago
    Ai generated

Q: What kind of alarms does this device provide?

submitted by AI Shopping Assistant - 2 months ago

  • A: It provides dual protection against both smoke and carbon monoxide emergencies.

    submitted byAI Shopping Assistant - 2 months ago
    Ai generated

Q: What technology does this alarm use for detection?

submitted by AI Shopping Assistant - 2 months ago

  • A: This alarm utilizes First Alert's Precision Detection advanced sensing technology for accurate detection of smoke and carbon monoxide.

    submitted byAI Shopping Assistant - 2 months ago
    Ai generated

Q: What features help reduce false alarms?

submitted by AI Shopping Assistant - 2 months ago

  • A: The alarm is designed to meet new industry standards that reduce cooking nuisance alarms.

    submitted byAI Shopping Assistant - 2 months ago
    Ai generated

Q: How long does the battery in the alarm last?

submitted by AI Shopping Assistant - 2 months ago

  • A: The 10-year sealed battery eliminates the need for replacement throughout the life of the alarm.

    submitted byAI Shopping Assistant - 2 months ago
    Ai generated

Q: How do you mount the detector to the wall or ceiling?

submitted by Lynda - 2 years ago

  • A: The base plate is installed high onto the wall with 2 screws (provided). The alarm itself inserts and twists onto the base plate. All you need is a Phillips screwdriver and a step stool/ladder.

    submitted byHandyGranny - 1 year ago

Q: does alarm use Ionization?

submitted by kathy - 24 days ago

Q: does it use Ionization

submitted by kathy - 24 days ago

Q: What CO level does this detect?

submitted by Nana - 4 months ago

Q: Will a new First Alert fit into the old ceiling holder? The old holder was for First Alert model no P1210 I'd like to not have to drill more holes.

submitted by Linda - 5 months ago
See all questions (12)

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4 out of 5 stars
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24 February, 2026

Battery didn't last 10 years

F irst time using this brand. End of life warning started after 8 years and detector had to be replaced. Otherwise, during use, no false alarms.
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4 February, 2026Verified purchase

(no review title)

Like that I dont have to change batteries. Lasts for 10 years.
sylvia
quality: 5 out of 5
value: 5 out of 5
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5 out of 5 stars
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19 December, 2025Verified purchase

(no review title)

Great alarm and great price.
David
quality: 5 out of 5
value: 5 out of 5
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4 out of 5 stars
Thumbs up graphic, would recommend
18 December, 2025Verified purchase

smoke and carbon monoxide alarm

just what I needed, like the ten year battery
Geraldine
quality: 5 out of 5
value: 5 out of 5
2 guests found this review helpful. Did you?
5 out of 5 stars
16 December, 2025Verified purchase

(no review title)

Always able to pickup quality items from Target
randy
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1 out of 5 stars
Thumbs down graphic, would not recommend
12 November, 2025Verified purchase

(no review title)

I am using "Rate and review", but I really need "Fix an issue" which would not let me proceed with stating the issue. The paroblem: Item ordered was "Smoke & Carbon Monoxide Detector, FIRE ALARM", but the product does not inslude Fire Alarm (it includes only Smoke and CO)
Raj
quality: 1 out of 5
value: 1 out of 5
1 guest found this review helpful. Did you?
1 out of 5 stars
Thumbs down graphic, would not recommend
30 September, 2025Verified purchase

Dont buy, waste of money. Failed after one month

This barely lasted one month before it failed and alarm would not stop on its own. We gave gone through 4 smoke detectors of this brand in one year and they all fail ridiculously early.
Laura
4 guests found this review helpful. Did you?

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