First Alert BRK SMI100-AC Hardwired Smoke Detector with Battery Backup, 6-Pack
First Alert BRK SMI100-AC Hardwired Smoke Detector with Battery Backup, 6-Pack
First Alert BRK SMI100-AC Hardwired Smoke Detector with Battery Backup, 6-Pack
First Alert BRK SMI100-AC Hardwired Smoke Detector with Battery Backup, 6-Pack
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First Alert BRK SMI100-AC Hardwired Smoke Detector with Battery Backup, 6-Pack
First Alert BRK SMI100-AC Hardwired Smoke Detector with Battery Backup, 6-Pack
First Alert BRK SMI100-AC Hardwired Smoke Detector with Battery Backup, 6-Pack
First Alert BRK SMI100-AC Hardwired Smoke Detector with Battery Backup, 6-Pack
Introducing the revolutionary BRK 9120 series smoke alarms which have been redesigned to install faster, perform better, and even smarter than before.
First Alert BRK SMI100-AC Hardwired Smoke Detector with Battery Backup, 6-Pack
Nº de artículo: 34719374

First Alert BRK SMI100-AC Hardwired Smoke Detector with Battery Backup, 6-Pack

88% of respondents would recommend this to a friend

Nº de artículo: 34719374

DOP 8246

Price Details

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

*All items will import from Estados Unidos

2K+ bought

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Estados Unidos Importado de la tienda USA

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Haz tu pedido ahora y recíbelo por ahí Martes, Septiembre 29
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Introducing the revolutionary BRK 9120 series smoke alarms which have been redesigned to install faster, perform better, and even smarter than before.
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What Stands Out

Hardwired Safety
The First Alert BRK 9120Bff-6 ensures continuous power with hardwired connections, minimizing the risk of dead batteries and enhancing safety for families.
Battery Backup
Equipped with a battery backup, this smoke detector guarantees protection during power outages, ensuring peace of mind in every situation.
6-Pack Value
This economical 6-pack allows comprehensive coverage throughout your home, offering an excellent value for maximizing safety without cutting corners on quality.

Detalles de producto

Shop now for the First Alert BRK 9120Bff-6 Hardwired Smoke Detector with Battery Backup. Protect your home with this reliable 6-pack from Ubuy Dominican Republic.
  • - 6-pack of hardwired smoke alarms with battery backup
  • - Tamper resistant locking pins, single button silence/test, and loud 85Db alarm
  • - 120-Volt AC power with 9-volt battery backup (included)
  • - Open mounting design for easy installation and quick battery replacement
  • - Interconnectable with up to 18 units (12 smoke, 6 co/heat/relay)
  • - Smart technology to reduce nuisance alarms and 10-year limited warranty
BrandFirst Alert
Model Number9120B
Unit Count6 Count
Number of Items6
ManufacturerFirst Alert
UPC029054019387 029054019226
Built-In Media9-volt battery (6), First Alert BRK 9120B Hardwired Smoke Alarms with Battery Backup (6), Mounting brackets with hardware (6)
Item Type NameSmoke Detectors
Mfr Part Number9120BFF-6
Power SourceBattery Powered
AlarmAudible
Compatible Devicessmoke alarms
Sensor TypeIonization
Operating Humidity10-95% RH
Product StyleHardwired
ColorWhite
Item Dimensions D x W x H2.2"D x 5.6"W x 5.6"H (5.6 x 14.2 x 14.2 cm)
Item Weight9.6 ounces (272.16 grams)
StyleHardwired
Product Dimensions (L x W x H)2.2"D x 5.6"W x 5.6"H (5.6 x 14.2 x 14.2 cm)

Mercancías peligrosas

Para evitar demoras en el proceso de despacho aduanero de mercancías peligrosas, el envío se abrirá en nuestras instalaciones de depósito para verificar la gravedad de los componentes peligrosos. Please see the list of Dangerous goods here.

Who Should Buy?

Suitable For
  • Homeowners

    Ideal for homeowners seeking reliable smoke detection with hardwired safety and battery backup for extra security.

  • Landlords

    A great choice for landlords needing multiple smoke detectors for rental properties, ensuring tenant safety and compliance.

  • Large Families

    Suitable for large families who require multiple smoke detectors throughout their home for enhanced fire safety.

Not Suitable For
  • Small Apartments

    Not ideal for small apartments where fewer detectors are needed, adding unnecessary cost and complexity.

DESCRIPCIÓN DEL PRODUCTO

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Preguntas y respuestas de los clientes

  • Pregunta: What is the First Alert BRK 9120Bff-6 Hardwired Smoke Detector?

    Respuesta: The First Alert BRK 9120Bff-6 is a hardwired smoke detector designed to provide reliable and continuous monitoring of smoke presence in your home. It features a battery backup to ensure functionality even during power outages. This pack contains six units, making it ideal for larger homes or multiple rooms. These smoke detectors help detect smoke from fires early, increasing safety and awareness.
  • Pregunta: How does the battery backup feature work?

    Respuesta: The battery backup in the First Alert BRK 9120Bff-6 allows the smoke detector to continue functioning even if there’s a power outage. An internal battery kicks in, ensuring the device remains operational. This feature is critical for maintaining safety during emergencies when power may be lost, making it a reliable choice for protecting your home and loved ones.
  • Pregunta: Can I install the smoke detectors myself?

    Respuesta: Yes, the First Alert BRK 9120Bff-6 is designed for easy installation by homeowners. It comes with detailed instructions and all necessary hardware, allowing you to mount the detectors in different areas of your home, such as hallways, bedrooms, and living rooms. Proper placement ensures effective smoke detection, with a focus on areas where fires are most likely to start.
  • Pregunta: What makes hardwired smoke detectors better than battery-operated ones?

    Respuesta: Hardwired smoke detectors like the First Alert BRK 9120Bff-6 have several advantages over battery-operated models. For one, they provide continuous monitoring, as they’re connected directly to your home’s electrical system. Additionally, they eliminate the need for regular battery replacements, ensuring consistent performance. Their reliability makes them a preferred choice for dedicated homeowners prioritizing safety.
  • Pregunta: How often should I test my smoke detectors?

    Respuesta: It is recommended to test your smoke detectors at least once a month. The First Alert BRK 9120Bff-6 features a test button that allows you to quickly verify that the unit is functioning properly. Regular testing ensures that both the hardwired connection and battery backup are operational, providing peace of mind and safeguarding against potential fires.
  • Pregunta: What is the coverage area for each smoke detector in this pack?

    Respuesta: Each First Alert BRK 9120Bff-6 smoke detector can effectively monitor an area of approximately 900 square feet. With six units included in the pack, you can strategically place them throughout your home to ensure comprehensive coverage. This setup not only enhances safety but also ensures that residents are quickly alerted in case of a fire, no matter where it may occur.
  • Pregunta: Do these smoke detectors have an alarm sound level specification?

    Respuesta: Yes, the First Alert BRK 9120Bff-6 features an alarm sound level of 85 decibels at 10 feet. This volume level is designed to be loud enough to wake most individuals from sleep during a fire emergency. The audible alert is crucial for ensuring that everyone in the household is informed and can evacuate as needed, emphasizing the importance of having reliable smoke detectors.
  • Pregunta: Can I interconnect these smoke detectors with others in my home?

    Respuesta: Yes, the First Alert BRK 9120Bff-6 units can be interconnected with other hardwired smoke detectors. This means that when one unit detects smoke, all interconnected detectors will sound the alarm, providing an early warning throughout your home. This feature is particularly beneficial in larger spaces, ensuring that alerts reach everyone, regardless of where they are located.
  • Pregunta: What maintenance is required for these smoke detectors?

    Respuesta: Maintenance for the First Alert BRK 9120Bff-6 smoke detectors is minimal but essential. Regularly test the units once a month, clean them with a vacuum or damp cloth to remove dust buildup, and ensure that the internal battery is functional. This routine check helps maintain the detector’s efficiency, ensuring optimal performance over time, which is crucial for your household's safety.
  • Pregunta: Where can I buy the First Alert BRK 9120Bff-6 Hardwired Smoke Detector with Battery Backup, 6-Pack?

    Respuesta: You can buy the First Alert BRK 9120Bff-6 Hardwired Smoke Detector with Battery Backup, 6-Pack on Ubuy. This e-commerce platform offers a variety of products, including safety devices like smoke detectors, ensuring you have access to reliable and trusted merchandise for enhancing your home safety.

First Alert Smoke Detectors & Fire Alarms 9120B Editorial Review

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The First Alert BRK 9120Bff-6 Hardwired Smoke Detector with Battery Backup is a reliable and affordable option for updating or replacing smoke detectors in your home. With easy installation and compatibility with existing hardwiring, these smoke detectors are a perfect fit for most homes. The addition of battery backup ensures safety during times of power outages.

Customer Reviews & Ratings

1262 valoraciones de los clientes
  • 5 estrella
    81%
  • 4 estrella
    10%
  • 3 estrella
    3%
  • 2 estrella
    1%
  • 1 estrella
    5%

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ventajas

  • Affordable
  • Easy to install
  • Reliable
  • Battery backup

Contras

  • Incorrect product branding on some orders

Platform Trust & Buyer Confidence

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

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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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“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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DOP 8246

Haz tu pedido ahora y recíbelo por ahí Martes, Septiembre 29

QTY:

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Fastest cross-border delivery

características y beneficios

  • Easy to install and maintain
  • Interconnectable up to 18 units
  • Latching alarm indicator and power indicators
  • Reduced nuisance alarms with smart technology
  • Includes a 10-Year limited warranty and battery backup
  • Faster turnaround with easy installation

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