First Alert
0 ratings
First Alert Hardwire Combination Smoke & Carbon Monoxide Alaram | SMICO105-AC, 10 Year Battery Backup
First Alert Hardwire Combination Smoke & Carbon Monoxide Alaram | SMICO105-AC, 10 Year Battery Backup
First Alert Hardwire Combination Smoke & Carbon Monoxide Alaram | SMICO105-AC, 10 Year Battery Backup
First Alert Hardwire Combination Smoke & Carbon Monoxide Alaram | SMICO105-AC, 10 Year Battery Backup
First Alert Hardwire Combination Smoke & Carbon Monoxide Alaram | SMICO105-AC, 10 Year Battery Backup
First Alert Hardwire Combination Smoke & Carbon Monoxide Alaram | SMICO105-AC, 10 Year Battery Backup
genuine image
First Alert Hardwire Combination Smoke & Carbon Monoxide Alaram | SMICO105-AC, 10 Year Battery Backup
First Alert Hardwire Combination Smoke & Carbon Monoxide Alaram | SMICO105-AC, 10 Year Battery Backup
First Alert Hardwire Combination Smoke & Carbon Monoxide Alaram | SMICO105-AC, 10 Year Battery Backup
First Alert Hardwire Combination Smoke & Carbon Monoxide Alaram | SMICO105-AC, 10 Year Battery Backup
First Alert Hardwire Combination Smoke & Carbon Monoxide Alaram | SMICO105-AC, 10 Year Battery Backup
First Alert Hardwire Combination Smoke & Carbon Monoxide Alaram | SMICO105-AC, 10 Year Battery Backup
Install convenient 2-in-1 protection against both smoke and carbon monoxide with the First Alert SMICO105-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm.
First Alert Hardwire Combination Smoke & Carbon Monoxide Alaram | SMICO105-AC, 10 Year Battery Backup
Item #: 177032634

First Alert Hardwire Combination Smoke & Carbon Monoxide Alaram | SMICO105-AC, 10 Year Battery Backup

Item #: 177032634

GBP 161

Price Details

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

*All items will import from US

0 ratings Write a review

500+ bought

In stock
us Imported from USA store

QTY:

Order now and get it around Wednesday, August 26
Secured transactionsecured transaction

Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.

Our Top Logistics Partners
  • fedex
  • dhl
Install convenient 2-in-1 protection against both smoke and carbon monoxide with the First Alert SMICO105-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm.
Show More
U-Care Warranty:
None
Select a Plan
fast shipping

Fast
Shipping

free return

Free
Return*

secure packaging

Secure Packaging

100% original products

100% Original Products

pci-dss

PCI DSS Compliance

iso certified

ISO 27001 Certified

paypal payment
visa payment
mastercard payment
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

Dual Protection
This device combines smoke and carbon monoxide detection in one unit, effectively safeguarding homes against two life-threatening hazards.
Reliable Backup
Equipped with a 10-year battery backup, this alarm ensures continuous protection even during power outages, providing peace of mind at all times.
Interconnectivity
The hardwire design allows multiple units to interconnect, ensuring that all alarms sound simultaneously, enhancing safety across larger homes.

Product Details

Shop First Alert Hardwire Combination Smoke & Carbon Monoxide Alaram | SMICO105-AC, 10 Year Battery Backup online at a best price in Guernsey. B0CJLHXBJS
  • First Alerts 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
  • 10-Year battery backup provides continuous protection during power outages
  • Through early warning interconnect, when one alarm sounds, all compatible
  • Quick Connect Plug allows for easy installation with no need to rewire
  • Alarm indicator visually identifies the unit that initiated the alarm
Power SourceCorded Electric
Sensor TypeIonization
Operating Humidity10-95% RH
Product StyleSmoke, CO
ColorWhite
Item Weight10.56 ounces (299.38 grams)
BrandFirst Alert
Model NumberSMICO105-AC
Number of Items3
ManufacturerResideo
UPC029054022875
Built-In MediaEasy Adapter Plug
Item Type NameCombination Alarm
Mfr Part NumberSMICO105-AC
StyleSmoke, CO

Dangerous Goods

To avoid the delay in customs clearance process for Dangerous Goods, the shipment shall be opened at our warehouse facility to check the severity of hazardous components. Please see the list of Dangerous goods here.

Who Should Buy?

Suitable For
  • Homeowners with Large Properties

    Ideal for homeowners needing multiple alarms across spacious areas for comprehensive smoke and CO detection.

  • Families with Children

    Provides peace of mind to families by ensuring safety from smoke and carbon monoxide in the home.

  • Elderly Individuals

    Perfect for elderly individuals who may require reliable alerts for safety without worrying about battery replacements.

Not Suitable For
  • Renters in Small Spaces

    Not ideal for renters with limited space who may not want to install hardwired systems.

Product Description

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What features does the First Alert SMICO105-AC smoke and carbon monoxide alarm have?

    Answer: The First Alert SMICO105-AC features a combination smoke and carbon monoxide alarm, ensuring comprehensive protection against both dangers. This device interconnects with other alarms for synchronized alerts and includes a long-lasting battery backup, allowing it to function during power outages. Additionally, it provides voice alerts to clearly indicate whether smoke or carbon monoxide is detected, enhancing safety during emergencies.
  • Question: How does the interconnect feature of this alarm work?

    Answer: The interconnect feature allows multiple First Alert alarms to communicate with each other. When one alarm detects danger, all interconnected alarms will sound, providing a prompt alert throughout the home. This is particularly useful in larger homes where sound may not travel easily, ensuring everyone is alerted simultaneously, helping to enhance safety efforts.
  • Question: Is installation complicated for the First Alert SMICO105-AC alarm?

    Answer: Installation of the First Alert SMICO105-AC is designed to be straightforward. Most users can install it themselves by following the included instructions, which provide clear guidance on hardwiring the unit. It’s recommended to place alarms in strategic locations, such as hallways and near sleeping areas, to maximize their effectiveness in detecting smoke and carbon monoxide.
  • Question: What is the lifespan of the battery backup in this alarm?

    Answer: The battery backup in the First Alert SMICO105-AC is designed to last for a decade under normal operating conditions. This extended lifespan ensures that you can rely on the alarm’s functionality during power outages without frequent battery changes. Regular testing is advised for optimal performance, providing peace of mind that the alarm is always ready to protect your home.
  • Question: Can the First Alert SMICO105-AC be linked with other safety devices?

    Answer: Yes, the SMICO105-AC can be linked with other First Alert interconnected alarms and safety devices. This interconnectivity includes linking smoke alarms with carbon monoxide detectors, creating a comprehensive safety network. This is advantageous in larger homes where coordinated alerts can significantly enhance safety and emergency response effectiveness.
  • Question: What should I do if the alarm goes off?

    Answer: If the First Alert SMICO105-AC alarms go off, follow the safety protocol for smoke and carbon monoxide emergencies. Evacuate immediately and ensure all residents are out of the building, then call emergency services. It’s essential to keep calm and to stay low to avoid smoke inhalation, as you respond to alerts to protect yourself and your loved ones.
  • Question: How can I test the functionality of my First Alert SMICO105-AC alarm?

    Answer: To test the functionality of your First Alert SMICO105-AC, press the test button on the unit. This will activate the alarm sound and check its operational integrity. It's recommended to conduct these tests monthly to ensure the alarm is working effectively, and adhere to safety practices by regularly monitoring its overall condition, including checking for dust buildup.
  • Question: What distinguishes the First Alert SMICO105-AC from other alarms?

    Answer: The First Alert SMICO105-AC stands out due to its combination capabilities, effectively detecting both smoke and carbon monoxide in a single unit. Its hardwired feature provides ongoing connectivity and robustness, while the battery backup ensures reliability during power failures. The interconnectivity with other alarms further enhances overall home safety by providing comprehensive environmental monitoring.
  • Question: Where can I buy the First Alert SMICO105-AC in Guernsey?

    Answer: You can purchase the First Alert SMICO105-AC, Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with 10-Year Battery Backup, 3-Pack from Ubuy in Guernsey. Ubuy offers a convenient platform to explore this essential safety product along with other First Alert offerings, ensuring you have access to the needs of your household.
  • Question: What maintenance is required for the First Alert SMICO105-AC?

    Answer: Maintaining the First Alert SMICO105-AC involves regular testing of the alarm's functionality by using the test button and ensuring it's free from dust and debris. Cleaning the exterior can help avoid false alarms due to particulates. Replace the entire unit as recommended by the manufacturer to ensure continued safety, especially if it has reached the end of its operational life cycle.

First Alert Combination Smoke & Carbon Monoxide Detectors SMICO105-AC Editorial Review

  • ubuy Guernsey
  • ubuy Guernsey
  • ubuy Guernsey
  • ubuy Guernsey
  • ubuy Guernsey
  • ubuy Guernsey
  • ubuy Guernsey
  • ubuy Guernsey
  • ubuy Guernsey
  • ubuy Guernsey
  • ubuy Guernsey
  • ubuy Guernsey
  • ubuy Guernsey
  • ubuy Guernsey

The First Alert SMICO105-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm emerges as a highly favored choice among customers looking for reliable safety solutions for their homes. With a generous 10-year battery backup, users appreciate the elimination of frequent battery changes, a feature that significantly enhances convenience. Reviews Consistently highlight the ease of installation, especially for customers replacing older First Alert models. Many have reported that the wiring harnesses are compatible, making the plug-and-play experience seamless. Despite minor issues, such as the need to replace the mounting rings, the installation process remains straightforward and quick. Customers commend the effectiveness of the alarms during self-tests, providing peace of mind along with advanced safety features like interconnectivity. However, some users noted a rare defect in one of the alarms within a multi-pack. While this prompted a slight setback, most still regard the overall performance and value as exceptional, and would not hesitate to recommend the product. Overall, customer reception of the First Alert SMICO105-AC is largely positive, with a strong emphasis placed on its ease of installation, dependable functionality, and cost-effectiveness. **

Customer Reviews & Ratings

308 customers ratings
  • 5 Star
    79%
  • 4 Star
    13%
  • 3 Star
    3%
  • 2 Star
    0%
  • 1 Star
    5%

Review this product

Share your thoughts with other customers

Pros

  • Easy to install and replace existing smoke detectors
  • 10-year battery backup eliminates the need for frequent changes
  • Good value for money, combining smoke and carbon monoxide detection
  • Interconnect feature allows multiple alarms to trigger simultaneously
  • Generally reliable performance with effective self-testing functionality

Cons

  • Some users reported a defective unit in the pack

Platform Trust & Buyer Confidence

trustpilot logo
4.2/5 9250 + reviews
Read reviews
MA
Mohammad
Verified buyer

“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”

23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer

“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”

22-Jul-26 · via Trustpilot
K
kund
Verified buyer

“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”

23-Jul-26 · via Trustpilot
OO
Onesi
Verified buyer

“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”

22 July 2026 · via Trustpilot
SJ
SAO JOHN
Verified buyer

“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”

23 July 2026 · via Trustpilot
Secure Checkout Global Delivery Easy Returns Genuine Products

Product Price History

Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
  • Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

GBP 161

Order now and get it around Wednesday, August 26

QTY:

Secured transactionsecured transaction

PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Our Top Logistics Partners
  • fedex
  • dhl
Fastest cross-border delivery

Features & Benefits

  • Provides 2-in-1 protection against smoke and carbon monoxide.
  • Features a 10-Year battery backup for continuous protection.
  • Interconnects with other compatible alarms for a whole home safety network.
  • Utilizes advanced sensing technology to reduce nuisance alarms.
  • Easy installation with Quick Connect Plug, no rewiring needed.
  • Visual alarm indicator shows which unit initiated the alarm.

Ubuy Assurance

Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.