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First Alert SMCO100 Battery-Operated Combination Smoke & Carbon Monoxide Alarm - 3 Pack
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First Alert SMCO100 Battery-Operated Combination Smoke & Carbon Monoxide Alarm - 3 Pack
Provides reliable 2-in-1 protection against both smoke and carbon monoxide
First Alert SMCO100 Battery-Operated Combination Smoke & Carbon Monoxide Alarm - 3 Pack
Item #: 89842590

First Alert SMCO100 Battery-Operated Combination Smoke & Carbon Monoxide Alarm - 3 Pack

87% of respondents would recommend this to a friend

Item #: 89842590

TTD 1044

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Provides reliable 2-in-1 protection against both smoke and carbon monoxide
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What Stands Out

Dual Detection
This alarm combines smoke and carbon monoxide monitoring in one device, ensuring comprehensive safety for your home by addressing two critical threats simultaneously.
Battery Operated
The battery-operated design allows for easy installation without the need for hardwiring, making it perfect for renters or homes without existing smoke detectors.
Three Pack Value
With a convenient three-pack, you can equip multiple areas of your home, providing extensive coverage and enhanced safety at an economical price.

Product Details

Shop First Alert SMCO100 Battery-Operated Combination Smoke & Carbon Monoxide Alarm - 3 Pack online at a best price in Trinidad and Tobago. B0CKTZ4GVW
Power SourceBattery Powered
AlarmSmoke, CO
Sensor TypePhotoelectric
Product StylePrecision Detection
ColorWhite
Item Dimensions D x W x H2.5"D x 5.75"W x 5.75"H (6.4 x 14.6 x 14.6 cm)
Item Weight1.6 Pounds (730 grams)
BrandFirst Alert
Model NumberSMCO100
Unit Count3.0 Count
Number of Items3
ManufacturerResideo
UPC029054022080
Built-In MediaAA Batteries
Item Type NameCombination Alarm
Mfr Part NumberSMCO100
StylePrecision Detection
Product Dimensions (L x W x H)2.5"D x 5.75"W x 5.75"H (6.4 x 14.6 x 14.6 cm)

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

    Ideal for homeowners seeking reliable smoke and carbon monoxide detection in multiple areas of their residence.

  • Renters

    Perfect for renters who want portable safety devices for smoke and carbon monoxide protection.

  • Families

    Great for families with children, ensuring multiple detection alarms enhance safety and peace of mind.

Not Suitable For
  • Large Homes

    Not suitable for large homes, as multiple units may be needed for comprehensive coverage.

Product Description

First Alert SMCO100 Battery-Operated Combination Smoke & Carbon Monoxide Alarm - 3 Pack

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What features does the First Alert Combination Smoke & Carbon Monoxide Alarm offer?

    Answer: The First Alert Combination Smoke & Carbon Monoxide Alarm includes features such as a battery-operated design that ensures continuous protection even during power outages, a test and silence button for easy operation, and an advanced sensor that detects smoke and carbon monoxide to provide alerts. These features make it exceptionally reliable in real-life situations where immediate detection can save lives.
  • Question: How does the test and silence button work on this alarm?

    Answer: The test and silence button on the First Alert Combination Alarm allows users to easily test the functionality of the unit. By pressing the button, you can confirm that the alarm is working properly and is ready to sound in case of an emergency. Additionally, if you accidentally trigger the alarm during cooking or other activities, using the silence function will temporarily mute the alert without compromising safety.
  • Question: Is the First Alert SMCO100 easy to install?

    Answer: Yes, the First Alert SMCO100 is designed for easy installation. It comes with mounting hardware and can be installed on walls or ceilings without professional assistance. The battery-operated nature means you do not need to deal with complex wiring, making it convenient for installation in a variety of locations such as homes, apartments, or even vacation rentals.
  • Question: How often should I test the smoke and carbon monoxide alarm?

    Answer: It is recommended to test your smoke and carbon monoxide alarm at least once a month to ensure it is functioning correctly. Regular testing helps in identifying any issues with the alarm before an emergency arises. This practice is essential for maintaining safety in your living environment, as it ensures that any danger will be detected promptly.
  • Question: What is the lifespan of the First Alert Combination Smoke & Carbon Monoxide Alarm?

    Answer: The First Alert Combination Alarm typically has a lifespan of up to 10 years. After this period, it is crucial to replace the unit to ensure optimal protection from smoke and carbon monoxide. Regularly checking the manufacturing date on the back of the unit will help you keep track of when it needs to be replaced, ensuring continuous safety for your household.
  • Question: Can this alarm be used in different types of homes?

    Answer: Yes, the First Alert SMCO100 is versatile and can be used in various types of homes, including single-family houses, multi-family units, and apartments. Its battery-operated design allows for flexible installation in places where electrical outlets are not available, making it suitable for rooms, hallways, and other living areas that may not have existing alarms.
  • Question: What kind of alerts can I expect from this alarm?

    Answer: The First Alert Combination Smoke & Carbon Monoxide Alarm provides loud alerts that are designed to wake people from sleep and alert occupants in the case of smoke or carbon monoxide detection. This is critical for swift evacuation during an emergency. The dual alarm also improves safety by offering varied alerts for smoke and carbon monoxide, helping users distinguish between threats.
  • Question: How does this alarm detect carbon monoxide?

    Answer: The First Alert Combination Alarm uses an advanced electrochemical sensor to detect carbon monoxide levels in the air. When it senses CO at dangerous levels, it emits an alarm sound to warn occupants. This technology is backed by research and is essential for early detection of this odorless and colorless gas, which can be lethal if undetected, emphasizing the importance of having this alarm in homes.
  • Question: What maintenance does the First Alert SMCO100 require?

    Answer: Maintenance for the First Alert SMCO100 involves routine testing using the test button and replacing the unit every 10 years. Additionally, it’s essential to clean the alarm periodically with a vacuum or a soft brush to remove dust and debris that could interfere with its functionality. Regular maintenance ensures that the alarm operates effectively and enhances your safety.
  • Question: Where can I buy the First Alert Combination Smoke & Carbon Monoxide Alarm in Trinidad and Tobago?

    Answer: You can buy the First Alert Combination Smoke & Carbon Monoxide Alarm from Ubuy in Trinidad and Tobago. Ubuy offers a convenient shopping experience with access to this reliable safety device, ensuring you can protect your home efficiently and effectively.

First Alert Combination Smoke & Carbon Monoxide Detectors SMCO100 Editorial Review

The First Alert SMCO100 Battery-Operated Combination Smoke & Carbon Monoxide Alarm has received positive feedback from customers who appreciate its dual protection against both smoke and carbon monoxide (CO) hazards. Many users highlighted the value of having a combined device that provides comprehensive safety for their homes. The alarm emits loud alerts which are deemed effective for waking occupants during emergencies, making it especially reassuring for those with deep sleep patterns. Installation of the device has been universally praised as straightforward, with most customers noting that they were able to mount it effortlessly without needing any wiring. Its compact design is also a favorable feature, allowing it to blend into home decor seamlessly. Users are relieved by the switch from 9V to AA batteries, citing this change as a convenience, given that AA batteries are often easier to source. Despite its strengths, the product does have a few points of contention. One notable limitation is its reliance on battery power alone, which may not appeal to those looking for a hardwired option. The manual states that the unit has a useful life of about 7 years before it starts beeping, indicating it needs replacement. While the ability to silence this alarm for a short period is a plus, users have expressed concern about the potential risk of overlooking the need for a new unit. Furthermore, the clarity of the voice alarms and the visibility of the power indicators have been critiqued as areas for improvement. Overall, the First Alert SMCO100 emerges as a reliable choice for smoke and CO detection, particularly noted for its ease of installation, effective alarm system, and manufacturer reputation for safety. **

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Pros

  • Dual protection against smoke and carbon monoxide.
  • Easy to install without complicated wiring.
  • Loud alarm alerts for emergencies.
  • Battery-operated design allows for continuous operation during power outages.
  • Compact, sleek design blends well with home decor.

Cons

  • No hardwired power supply available.

Platform Trust & Buyer Confidence

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Jasmin
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“Great products and very good service: very easy and very fast international delivery.”

9 September 2026 · via Trustpilot
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“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”

10 September 2026 · via Trustpilot
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Hazel
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“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”

10 September 2026 · via Trustpilot
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Opaleye
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“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”

11 September 2026 · via Trustpilot
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Adele
Verified buyer

“Easy to find and order what you want on the website. Delivery is quick to the UK”

8 September 2026 · via Trustpilot
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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.

TTD 1044

Order now and get it around Thursday, September 24

QTY:

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

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Fastest cross-border delivery

Features & Benefits

  • Equipped with Precision Detection advanced sensing technology
  • Meets new industry standards
  • Easy to install and maintain
  • Test/silence button for efficient testing
  • End-of-life warning for replacement notification

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