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First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup, 6-Pack

  • Based on 26,951 reviews
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Availability: Only 1 left in stock, order soon!
Fulfilled by DealsOnWings

Arrives Aug 21 – Aug 24
Order within 8 hours and 17 minutes
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Size: 6-Pack


Style: Precision Detection


Pattern Name: SMICO100-AC


Features

  • BRK's Precision Detection advanced sensing technology reduces cooking nuisance alarms and delivers early warning
  • Interconnects with most First Alert and BRK alarms so when one sounds, all compatible alarms sound to provide an early warning
  • Battery backup provides continuous protection during power outages
  • Perfect mount bracket keeps the alarm secure over a wide rotation range for ideal alignment and easy installation
  • Latching Alarm Indicator visually identifies the unit that initiated the alarm or low battery warning

Description

The SMICO100-AC Interconnect Hardwire 2-in-1 Smoke & CO Alarm with Battery Backup utilizes First Alert's Precision Detection technology and meets new industry standards. Easily install and interconnect multiple alarms together to create an alarm system throughout your home.

Brand: FIRST ALERT


Style: Precision Detection


Power Source: Corded Electric


Color: White


Product Dimensions: 5.6"D x 5.6"W x 1.9"H


Item Weight: 3.3 Pounds


Alarm: Smoke, CO


Sensor Type: Ionization


Number of Items: 6


Manufacturer: Resideo


Brand: ‎FIRST ALERT


Style: ‎Precision Detection


Power Source: ‎Corded Electric


Color: ‎White


Product Dimensions: ‎5.6"D x 5.6"W x 1.9"H


Item Weight: ‎3.3 Pounds


Alarm: ‎Smoke, CO


Sensor Type: ‎Ionization


Number of Items: ‎6


Manufacturer: ‎Resideo


UPC: ‎029054022783


Item Weight: ‎3.33 pounds


Country of Origin: ‎Mexico


Item model number: ‎SMICO100-AC


Batteries: ‎1 9V batteries required. (included)


Size: ‎6-Pack


Pattern: ‎SMICO100-AC


Item Package Quantity: ‎1


Included Components: ‎Easy Adapter Plug, 9V Battery


Batteries Included?: ‎Yes


Batteries Required?: ‎Yes


Battery Cell Type: ‎Alkaline


Date First Available: October 26, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Aug 21 – Aug 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Easy to install.
Size: 3-Pack Style: Standard Detection Pattern Name: 1040510
Great item and quick delivery!!!
Reviewed in the United States on April 9, 2025 by Doug Barcus

  • Works good
Size: 1-Pack Style: Precision Detection Pattern Name: SMICO100-AC
easy installation and works fine.
Reviewed in the United States on March 11, 2025 by Mahmood Yahyai

  • Direct Replacement for OEM
Size: 3-Pack Style: Precision Detection Pattern Name: SMICO100-AC
My home isn't that old, but the builder-installed smoke/CO detectors started failing. I am not talking about the lame single beeps (always in the middle of the night) that announce that it is time to change the backup battery. No, indeed...the old units made the triple-beep that said they needed replacing. Of course, they chose the middle of the night to fail and no less than three of them failed at once. This package of three is perfect for my needs. These are a direct, snap-in replacement for the originals -- I did not have to change around the plugs or the mount. It was plug in, mount to the ring, and twist to lock. Probably the easiest home DIY project I have had in a while. Pay the extra few dollars, get the direct replacements, save yourself the headaches. ... show more
Reviewed in the United States on February 9, 2025 by BigDaddyNC

  • Safety first
Size: 1-Pack Style: Standard Detection Pattern Name: SC9120FF
works perfectly
Reviewed in the United States on April 2, 2025 by CJ

  • Great Product - Crazy Price Increase
Size: 1-Pack Style: Standard Detection Pattern Name: SC9120FF
I purchased one in Jan 2023 for $30 and the price has nearly doubled in 2 years. Its hard to put a price on safety and manufacturers know this.
Reviewed in the United States on December 14, 2024 by EMC

  • Smoke/carbon monoxide detector
Size: 3-Pack Style: Precision Detection Pattern Name: SMICO100-AC
Arrived quickly and in perfect condition. Installed easily without issues.
Reviewed in the United States on March 31, 2025 by Mike S

  • Smoke detector
Size: 1-Pack Style: Standard Detection Pattern Name: SC9120FF
Device ok
Reviewed in the United States on April 1, 2025 by Judith

  • Replace your detectors every 5 years or so
Size: 3-Pack Style: Standard Detection Pattern Name: 1040510
Bought a new house and they clearly hadn't changed the detectors for way over 5 years. This was a good deal buying in bulk. Hardwired detectors should be preferred over battery operated ones. You will need 9V batteries for when the power goes out though. Be sure that the connector you have matches the one on on these First Alerts. You can get or alter the existing ones to work with these connectors if you have a mismatch if you really want. These come with wires and the other plug end so that you can snip the wires on your existing clip and replace it with a new connector if you need to. I generally don't like doing that but for something you only do once every 5 years it's not a big deal. Luckily my existing hardwired connector from the outlet fit the plug on these detectors. First Alert is a top tier brand and it'll do great at detecting smoke. Carbon Monoxide is trickier to detect across the board, especially when the detector is on the ceiling so by the time the alarm is going off you've got a lot of carbon monoxide in your home but it still gives you enough of a warning to where you can grab your family and get out the house (preferably opening a window on the way out if you have pets especially). It comes with a nice collar and frame so you don't have to install these over an ugly yellowing collar/frame from an old one. The twist to install/remove mechanism works well. The plug for the hardwired feature connects very strongly too. Sometimes it could be difficult to remove but honestly you won't have to until you replace the entire thing anyway. You can easily change the batteries without removing the clip connector from the wall. ... show more
Reviewed in the United States on December 19, 2024 by Bill P.

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