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Item #:
90594040
First Alert Hardwire Combination Smoke & Carbon Monoxide Alarm | SMICO100-AC, 9V Battery Backup
Item #:
90594040
NZD 130
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Imported from USA store
QTY:
Order now and get it around Thursday, August 27
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Easily install and interconnect multiple alarms together to create an alarm system throughout your home.
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Hardwired Reliability
The First Alert BRK SC9120B-6 offers consistent power and safety assurance with a hardwired design that eliminates the need for battery changes, ensuring maximum protection at all times.
Battery Backup
Equipped with a battery backup, this detector maintains functionality during power outages, ensuring continued monitoring for smoke and carbon monoxide, providing peace of mind for your family.
6-Pack Value
With six units included, this package provides comprehensive coverage for larger homes, delivering exceptional value and enhanced safety across multiple rooms, making it a smart investment for family protection.
Product Details
| Brand | First Alert |
| Model Number | SMICO100-AC |
| Unit Count | 1 Count |
| Number of Items | 1 |
| Manufacturer | Resideo |
| UPC | 029054022752 |
| Built-In Media | Easy Adapter Plug, 9V Battery |
| Item Type Name | Combination Alarm |
| Mfr Part Number | SMICO100-AC |
| Power Source | Corded Electric |
| Alarm | Smoke, CO |
| Sensor Type | Ionization |
| Operating Humidity | 10-95% RH |
| Product Style | Precision Detection |
| Color | White |
| Item Dimensions D x W x H | 5.5"D x 2"W x 5.5"H (14 x 5.1 x 14 cm) |
| Item Weight | 8.96 ounces (254.02 grams) |
| Style | Precision Detection |
| Product Dimensions (L x W x H) | 5.5"D x 2"W x 5.5"H (14 x 5.1 x 14 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?
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Homeowners
Ideal for homeowners who want reliable smoke and CO detection for enhanced safety in their residences.
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Parents
Perfect for parents seeking peace of mind with advanced detection systems for their children's safety.
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Landlords
Suitable for landlords needing a compliant and reliable smoke and CO detection solution in rental units.
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Urban Dwellers
May not suit those living in apartments where hardwired installations are less common or impractical.
Product Description
First Alert Hardwire Combination Smoke & Carbon Monoxide Alarm | SMICO100-AC, 9V Battery Backup
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What are the key features of the First Alert SMICO100-AC smoke and carbon monoxide alarm?
Answer: The First Alert SMICO100-AC features both smoke and carbon monoxide detection, providing dual protection for your home. It includes hardwired interconnectivity, allowing multiple alarms to communicate with each other, enhancing safety. Additionally, it comes with a battery backup to ensure functionality even during power outages. This combination of features enables comprehensive monitoring, making it ideal for households with multiple rooms or levels. -
Question:
How does the hardwiring feature of the First Alert SMICO100-AC improve safety?
Answer: The hardwiring feature ensures a constant power supply, eliminating the risk of dead batteries that could compromise safety. With interconnected alarms, if one detects danger, all alarms will sound, alerting everyone in the house. This is especially important in larger homes where alerts need to be heard in different areas. The hardwired design is particularly beneficial for long-term safety solutions. -
Question:
Can the First Alert SMICO100-AC alarm be used in all types of homes?
Answer: Yes, the First Alert SMICO100-AC is suitable for a variety of residential settings, including single-family homes, apartments, and multi-story houses. Its hardwiring capability makes it a more permanent solution for smoke and CO detection. However, homes must be equipped for hardwired alarms, so it’s important to confirm installation requirements beforehand. Its adaptability makes it an excellent choice for most living situations. -
Question:
What type of battery backup does the First Alert SMICO100-AC use?
Answer: The First Alert SMICO100-AC uses a 9V battery for backup, ensuring that the alarm remains operational during power outages. This backup feature is critical for your safety, as the alarm will still function when you might need it most. Regularly checking and replacing the backup battery is important to ensure consistent performance throughout its lifecycle. -
Question:
Is professional installation recommended for the First Alert SMICO100-AC?
Answer: While installing the First Alert SMICO100-AC can be done by those with basic electrical skills, professional installation is recommended for optimal safety and functionality. Professionals can ensure that the alarms are correctly installed and interconnected, complying with local safety codes. This can be particularly beneficial in larger homes where strategic placement of alarms is vital for maximum coverage. -
Question:
How do the smoke and carbon monoxide sensors work in this alarm?
Answer: The smoke detection sensors in the First Alert SMICO100-AC utilize photoelectric technology to identify smoke, while the carbon monoxide detection is facilitated through an electrochemical sensor. These technologies allow for quick and accurate detection of dangers, minimizing the risk of false alarms. This combination enhances homeowner peace of mind, knowing that both fire and CO threats are effectively monitored. -
Question:
What maintenance is required for the First Alert SMICO100-AC alarms?
Answer: Regular maintenance for the First Alert SMICO100-AC includes testing the alarms monthly to ensure they are functioning correctly. Additionally, it is important to clean the alarms periodically from dust and debris that can interfere with their sensors. Checking the battery backup regularly is also essential for reliability. Maintenance ensures long-term protection and is crucial for the safety of your household. -
Question:
Can the First Alert SMICO100-AC be connected to other alarms?
Answer: Yes, the First Alert SMICO100-AC is designed for interconnectivity with other First Alert alarms that support the same hardwiring. This feature allows for a comprehensive alarm system where multiple units can alert simultaneously, enhancing safety throughout your property. This is especially useful in large homes, ensuring that everyone is notified in case of an emergency. -
Question:
What is the benefit of using a combination smoke and carbon monoxide alarm like the SMICO100-AC?
Answer: Using a combination smoke and carbon monoxide alarm offers comprehensive home safety in a single unit, eliminating the need for separate devices. This not only saves space but also reduces maintenance issues associated with multiple alarms. In emergencies, the integrated system ensures timely alerts for both fire and CO, significantly increasing your home’s safety and response times. -
Question:
Where can I buy the First Alert SMICO100-AC in New Zealand?
Answer: You can purchase the First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup - 3 Pack at Ubuy in New Zealand. Ubuy is known for offering a wide range of products and reliable service, making it a convenient choice for online shopping.
First Alert Combination Smoke & Carbon Monoxide Detectors SMICO100-AC Editorial Review
First Alert Hardwire Combination Smoke & Carbon Monoxide Alarm | SMICO100-AC, 9V Battery Backup provides dual protection against smoke and CO, ensuring comprehensive safety in your home. Users appreciate its seamless integration with existing systems, making installation straightforward and effective in alerting all units when one goes off. The reliable brand reputation adds to its value, giving peace of mind for family protection. Some users noted that it may require a bracket change if replacing older models, but overall feedback indicates satisfaction with its performance and ease of use during installation. Clear instructions and the inclusion of a battery are definite advantages.
Customer Reviews & Ratings
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Pros
- Combines smoke and carbon monoxide detection
- Easy installation with existing hardwired systems
- Alerts all units when one detects danger
- Includes clear instructions for easy setup
- Reliable brand known for home safety
Cons
- Bracket change may be needed for older models
Platform Trust & Buyer Confidence
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Ranee
Verified buyer
“Paint ordered from USA, u buy got the product to me in New Zealand in approx a week”
22 July 2026 · via Trustpilot
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NordVPN
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“very speedy delivery,tracking info was superb-best experikence ever!!!”
24 June 2026 · via Trustpilot
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Nicholas
Verified buyer
“Love what I received and ordered found that usa clothes are more better quality and look better than the same clothes in my country but are harder to find here recommend ubuy 100%”
22 June 2026 · via Trustpilot
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Dneah
Verified buyer
“Product came earlier than expected (shipped from US to NZ), in about 3 weeks. No damages and product was exactly as advertised!”
15-Jul-26 · via Trustpilot
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Tania
Verified buyer
“Easy to order, easy to track and the product is great to use. Also, the person-to-person (not automated) phone call I got to confirm that I'd received the item was wonderful ??”
11-Jul-26 · via Trustpilot
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NZD 130
Order now and get it around Thursday, August 27
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- Features First Alert's advanced Precision Detection technology.
- Complies with new industry standards for safety.
- Reduces cooking nuisance alarms for peace of mind.
- Allows for interconnectivity with multiple alarms.
- Easy installation with Quick Connect Plug, no rewiring needed.
- Battery backup ensures continuous protection during outages.
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