Hero image 0 of First Alert SMICO100-AC Interconnect Hardwire 2-in-1 Smoke and CO Alarm with Battery Backup, Ionization, 0 of 7
First Alert SMICO100-AC Interconnect Hardwire 2-in-1 Smoke and CO Alarm with Battery Backup, Ionization
Key item features
- Advanced Detection: Features precision detection technology that meets industry standards, reducing nuisance alarms from cooking while providing early warning for home fire emergencies.
- Interconnected Alarms: Supports interconnectivity, allowing all compatible alarms to sound simultaneously when one detects an issue, enhancing early warning capabilities throughout the home.
- Easy Installation: Equipped with a Quick Connect Plug and an adapter plug for straightforward installation or replacement of existing hardwire alarms without rewiring.
- Continuous Protection: Includes a battery backup to ensure uninterrupted operation and protection during power outages.
- User-Friendly Features: Incorporates a test/silence button for efficient testing and an end-of-life warning to indicate when the alarm needs replacement.
- Comprehensive Kit: Comes with a mounting plate, battery, screws, and a manual for complete setup.
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Specs
- Smoke & carbon monoxide alarm sensor technologyIonization Sensor
- Power typeBattery
- Battery life6 months
- Decibel rating85 dB
Current price is USD$49.51
Price when purchased online
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4.381948266373143 stars out of 5, based on 3634 seller reviews(4.4)3634 seller reviews
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About this item
Product details
Install this First Alert SMICO100-AC Hardwire Smoke and CO Detector as a single alarm or interconnect multiple, compatible ones together to create an alarm system throughout your home. All connected alarms will sound when 1 in the series is alerted to help provide an early warning. Integrate with up to 12 other First Alert or BRK alarms and 6 other compatible devices. Reference user's manual for compatible detectors. If the detector system sounds, the latching alarm indicator will visually identify the device that initiated the alarm. The SMICO100-AC includes an adapter plug to allow for easy installation or replacement of existing hardwire alarms. It is also equipped with a battery back to provide continuous protection during power outages. Help stop unwanted removal of the detector or backup battery using the optional locking features. Ensure the hardwire combination alarm is working properly using the single test/silence button located on the front of the device. A low battery warning will let you know when it's time to replace the backup battery and an end-of-life warning will let you know when it's time to replace the detector completely. See user's manual for information on how and when to test and replace detectors.
- Precision Detection advanced sensing technology complies with the latest industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency
- Through early warning interconnect, when 1 alarm sounds, all compatible alarms (see manual) will sound
- Quick Connect Plug allows for easy installation with no need to rewire
- Battery backup provides continuous protection during power outages
- Test/silence button for efficient testing to ensure detector is working properly
- End-of-life warning lets you know when it’s time to replace the alarm
- Ionization alarm
- Includes mounting plate, battery, screws, and manual
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.
Specifications
Smoke & carbon monoxide alarm sensor technology
Ionization Sensor
Power type
Battery
Battery life
6 months
Decibel rating
85 dB
Warranty
Warranty information
10 Year
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Warnings
Ingestion Hazard
This product contains a battery. Death or serious injury can occur if ingested. A swallowed battery can cause Internal Chemical Burn in as little as 2 hours. Keep new and used batteries OUT OF REACH OF CHILDREN. Seek Immediate medical attention if a battery is suspected to be swallowed or inserted inside any part of the body.
Customer ratings & reviews
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Showing 1-3 of 48 reviews
Nov 22, 2025
mark
5 out of 5 stars review
Verified Purchase
Works with several different models good value
Not the same number as the one I took out, but was a replacement that works with the others in the house. The only problem was the connection was hard, but it did connect to the existing connection after I realized that the metal tips in this detector itself or slightly bent it's a pretty good plug and play type deal, even though it came with mounting bracket and three pigtails. I was able to use existing base and wire connection
Helpful?2WELGY0OPIQA5432301863
May 3, 2026
JK
5 out of 5 stars review
Verified Purchase
Smoke/CO detector
Fast delivery, rather easy to install provided you are pretty handy (I have 6 detectors - 2 with CO detectors and 4 just smoke). Having batteries in the smoke detectors was certainly a plus. Price was very good too. Would recommend to anyone who's hardwired smoke detectors have expired.
Helpful?2WELGY0OPIQA5432301863
Apr 8, 2025
Sandra
5 out of 5 stars review
Verified Purchase
Very nice when replacing old one, easy install. Its hardwired %26 battery which you should replace every 6 months per our local fire department personnel. He also stated that they are not yet sure of the new smoke alarms that have 10 year batteries in them.
Helpful?2WELGY0OPIQA5432301863
