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Item #:
90950231
First Alert 9120B 120 Volt Hardwired Smoke Alarm With Battery Back Up 5 Pack
Item #:
90950231
NZD 203
Price Details
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Imported from USA store
QTY:
Order now and get it around Thursday, August 13
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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 9120B offers consistent power through hardwired connectivity while ensuring safety with battery backup, keeping your home protected even during power outages.
Multi-Pack Value
This 5-pack provides multiple units for comprehensive coverage in your home, ensuring each room is equipped with reliable smoke detection at an economical price.
Smart Technology
Advanced photoelectric sensing technology reduces false alarms while enhancing detection speed, ensuring timely alerts during smoke emergencies without unnecessary disturbances.
Product Details
| Item Weight | 2.56 lbs (1.16 kg) |
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 looking for reliable smoke detection in multiple rooms with hardwired alerts and battery backup.
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Landlords
Perfect for landlords requiring affordable, compliant smoke alarms for rental properties to ensure tenant safety.
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Families
Great for families wanting comprehensive fire safety solutions that continuously monitor for smoke and provide backup power.
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Apartment Dwellers
Not suitable for apartment residents who may have restrictions on installing hardwired smoke alarms in rental units.
Product Description
First Alert 9120B 120 Volt Hardwired Smoke Alarm With Battery Back Up 5 Pack
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What features does the First Alert 9120B smoke alarm offer?
Answer: The First Alert 9120B smoke alarm features hardwiring capabilities along with a battery backup, ensuring reliability during power outages. It incorporates an advanced photoelectric sensor for quick detection of smoke from slow-burning fires. This model is suitable for installation in homes, offices, and other residential spaces, making it a trusted choice for safety. -
Question:
How does the battery backup function in the First Alert 9120B?
Answer: The battery backup in the First Alert 9120B activates when there is a power failure, allowing the smoke alarm to remain operational. This is crucial for maintaining safety in your home, as it ensures continued monitoring for smoke even during blackouts. For optimal performance, regular maintenance and periodic battery replacement are recommended. -
Question:
Can I install the First Alert 9120B myself?
Answer: Yes, you can install the First Alert 9120B smoke alarm yourself, as it comes with detailed instructions. Most users find the installation process straightforward, requiring just basic tools. However, if you are unfamiliar with electrical work, consulting a professional can ensure proper placement and functionality, especially in multi-level homes. -
Question:
What is the coverage area for the First Alert 9120B smoke alarm?
Answer: The First Alert 9120B smoke alarm is designed to cover an average-sized room, typically providing reliable protection in spaces up to 1,500 square feet. For larger homes, it's advisable to install multiple units to ensure comprehensive coverage. This smoke alarm is perfect for bedrooms, hallways, and living areas, enhancing safety throughout your home. -
Question:
How do I test if my First Alert 9120B smoke alarm is working?
Answer: To test the First Alert 9120B smoke alarm, press the test button on the unit. A loud alarm sound indicates that the unit is functioning correctly. Regular testing, at least once a month, is recommended to confirm the smoke alarm is operational. It's essential for maintaining a safe environment, especially in homes with multiple occupants. -
Question:
What should I do if my smoke alarm goes off?
Answer: If your First Alert 9120B smoke alarm sounds, evacuate the area immediately and check for signs of smoke or fire. If safe, call emergency services to report the situation. Regular response drills can help ensure everyone knows how to react quickly, further enhancing the safety of your household. -
Question:
Is the First Alert 9120B smoke alarm interconnected with other alarms?
Answer: The First Alert 9120B can be interconnected with other compatible First Alert hardwired smoke alarms. This feature ensures that when one alarm detects smoke, all interconnected alarms will sound, providing a collective alert throughout your home. This is ideal for larger residences and ensures everyone is alerted in case of danger. -
Question:
How often should I replace the First Alert 9120B smoke alarm?
Answer: The First Alert 9120B has a lifespan of approximately a decade. To ensure optimal performance, replace it after ten years of use. Additionally, performing regular maintenance checks can help identify any issues beforehand. A proactive approach ensures safety and preparedness for potential fire hazards. -
Question:
What is the difference between photoelectric and ionization smoke detectors?
Answer: The First Alert 9120B utilizes a photoelectric sensor, which is generally more effective at detecting slow-burning fires that produce larger smoke particles. In comparison, ionization detectors respond quicker to fast-burning fires. This smoke alarm offers a balanced protection approach, making it suitable for various fire scenarios in residential settings. -
Question:
Where can I buy the First Alert 9120B 120 Volt Hardwired Smoke Alarm With Battery Back Up 5 Pack in New Zealand?
Answer: You can purchase the First Alert 9120B 120 Volt Hardwired Smoke Alarm With Battery Back Up 5 Pack on Ubuy. Ubuy offers a convenient online shopping platform for this essential safety product, ensuring you find the genuine First Alert smoke alarms quickly and efficiently.
FirstAlert Smoke Detectors & Fire Alarms Editorial Review
The First Alert 9120B 120 Volt Hardwired Smoke Alarm with Battery Backup is receiving strong endorsements from customers who appreciate its reliability and ease of installation. Users have found these smoke alarms to be a perfect replacement for their aging units, with many noting they did not need to replace the mounting bases, thereby simplifying the installation process. The inclusion of a backup battery makes these alarms even more appealing for safety during power outages, despite some opting to replace the battery with a familiar brand. Customers report that the alarms function effectively and are a cost-efficient alternative to other options on the market, with one reviewer highlighting the significant savings compared to pricier alternatives. The majority of users feel satisfied with the product's performance and ease of use, even mentioning how compatible these new units are with their existing setups. However, a few reviewers did point out that the attached ceiling rings needed to be replaced, indicating a minor compatibility issue. Despite such concerns, the overall sentiment leans heavily towards a positive experience with the First Alert 9120B smoke alarms, making this product a sound choice for those in need of reliable fire safety equipment. **
Customer Reviews & Ratings
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Pros
- Easy to install with existing mounting bases
- Includes battery backup for power outages
- Cost-effective replacement for old detectors
- Reliable performance noted by users
Cons
- Ceiling rings may need replacement for proper installation
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
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“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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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.
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NZD 203
Order now and get it around Thursday, August 13
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.)
QTY:
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Features & Benefits
- Provides reliable detection of smoke from fast-flaming fires.
- Loud 85-decibel alarm ensures you're alerted quickly.
- Hardwired with a 120-volt AC power supply.
- Includes a 9-volt battery backup for power outages.
- Features tamper-resistant locking pins for added security.
- Easy single button silence test simplifies maintenance.
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