First Alert
0 ratings
First Alert SM300-AC, Interconnect Hardwire Dual Sensor Smoke Alarm with Battery Backup, 1-Pack
genuine image
First Alert SM300-AC, Interconnect Hardwire Dual Sensor Smoke Alarm with Battery Backup, 1-Pack
Precision Detection advanced sensing technology reduces cooking nuisance alarms and delivers early warning.
First Alert SM300-AC, Interconnect Hardwire Dual Sensor Smoke Alarm with Battery Backup, 1-Pack
Item #: 138151805

First Alert SM300-AC, Interconnect Hardwire Dual Sensor Smoke Alarm with Battery Backup, 1-Pack

Item #: 138151805

NAD 1138

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
In stock
us Imported from USA store

QTY:

Order now and get it around Monday, July 27
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
Precision Detection advanced sensing technology reduces cooking nuisance alarms and delivers early warning.
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 Sensor Technology
This smoke alarm combines photoelectric and ionization sensors, providing comprehensive detection for both smoldering and flaming fires, ensuring faster response and greater safety for your home.
Battery Backup
Equipped with a reliable battery backup, the smoke alarm ensures continuous operation during power outages, giving you peace of mind and protection at all times.
Hardwired Connectivity
With hardwired installation, this device ensures a stable power supply and allows interconnection with other alarms, enhancing safety by alerting all units in the event of smoke detection.

Product Details

Shop First Alert SM300-AC, Interconnect Hardwire Dual Sensor Smoke Alarm with Battery Backup, 1-Pack online at a best price in Namibia. B0F6ZMRB4K
Item Weight1.6 lbs (730 grams)

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 enhanced safety with interconnected alarms and reliable battery backup for emergencies.

  • Families with Children

    Perfect for families wanting extra safety measures to ensure quick alerts in case of smoke or fire.

  • Landlords

    Great for landlords needing a reliable smoke alarm solution to meet tenant safety standards and regulations.

Not Suitable For
  • Budget Shoppers

    Not suitable for those looking for the cheapest smoke alarm options, as this model is more advanced and pricier.

Product Description

First Alert SM300-AC, Interconnect Hardwire Dual Sensor Smoke Alarm with Battery Backup, 1-Pack

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What are the features of the First Alert SM300-AC smoke alarm?

    Answer: The First Alert SM300-AC features a dual sensor system that combines both photoelectric and ionization elements, providing enhanced detection for both smoldering and flaming fires. This interconnectable smoke alarm can be wired directly into your home’s electrical system and includes a battery backup that ensures its functionality during power outages. Additionally, it boasts a silencing feature to prevent false alarms, making it perfect for use in kitchens or near bathrooms.
  • Question: How does the battery backup work?

    Answer: The battery backup in the First Alert SM300-AC is designed to keep the smoke alarm operational even during a power outage. This feature ensures that families remain protected regardless of external conditions. The battery compartment is easily accessible for swift battery replacement, allowing you to maintain peak performance and protection in your home. You can rely on this smoke alarm to function effectively, ensuring safety in critical situations.
  • Question: Can multiple SM300-AC alarms be interconnected?

    Answer: Yes, the First Alert SM300-AC allows interconnection with up to 18 other compatible smoke alarms. This feature ensures that if one alarm detects smoke, all interconnected units will activate, providing an audible alert throughout your home. This interconnected system is especially beneficial in larger spaces or multi-level homes, as it enhances safety by ensuring that alarms are heard from any location.
  • Question: Where is the best location to install the SM300-AC smoke alarm?

    Answer: For optimal performance, install the First Alert SM300-AC smoke alarm in areas where fires are most likely to start, such as bedrooms, hallways, and living areas. Additionally, it’s advisable to keep smoke alarms away from cooking appliances to reduce false alarms and ensure reliable detection. Mounting them on the ceiling or high on the wall can significantly improve airflow to the sensor, enhancing its responsiveness.
  • Question: How often should I test the smoke alarm?

    Answer: It is recommended to test the First Alert SM300-AC smoke alarm at least once a month. This simple process ensures that the devices are functioning correctly. You can easily press the test button to confirm operation. Regular testing helps maintain your family’s safety by identifying any potential malfunctions promptly, allowing you to address issues before they pose a risk.
  • Question: What makes the dual sensor technology advantageous?

    Answer: The dual sensor technology of the First Alert SM300-AC effectively combines photoelectric and ionization sensors, allowing it to detect various types of fires more accurately. Photoelectric sensors are excellent for detecting slow-burning fires, while ionization sensors respond faster to fast-flaming fires. This blend ensures comprehensive protection and minimizes false alarms, making it a reliable choice for safeguarding your home.
  • Question: What should I do if the alarm starts beeping?

    Answer: If the First Alert SM300-AC starts beeping, it typically indicates a low battery or the need for maintenance. A chirping sound generally signifies that the battery needs replacement, while continuous beeping can suggest smoke detection. If you hear this sound, you should investigate your home for potential smoke or fire hazards, and if none are present, check and replace the batteries to ensure continued safety.
  • Question: Are there any maintenance tips for the SM300-AC smoke alarm?

    Answer: To maintain your First Alert SM300-AC smoke alarm effectively, regularly dust the exterior with a soft cloth or vacuum the vents to prevent dust buildup. Test the unit each month to ensure it’s operational and replace the batteries at least once a year. Keep a note of the manufacturing date on the back of the unit and replace the entire smoke alarm every 10 years, as sensors can degrade over time.
  • Question: Is the First Alert SM300-AC suitable for commercial use?

    Answer: While the First Alert SM300-AC is primarily designed for residential use, it can be suitable for certain light commercial applications where low traffic and minimal fire risks exist. However, for higher risk commercial settings, a more robust fire detection system may be advisable. Always check local codes and regulations to ensure compliance with specific fire safety requirements.
  • Question: Where can I buy the First Alert SM300-AC in Namibia?

    Answer: You can purchase the First Alert SM300-AC, Interconnect Hardwire Dual Sensor Smoke Alarm with Battery Backup, 1-Pack, from Ubuy. Ubuy offers a diverse selection of home safety products, including smoke alarms, ensuring you find the right solution for your needs. With Ubuy, you can conveniently shop online and choose this reliable smoke alarm to enhance your household safety.

First Alert Smoke Detectors & Fire Alarms Editorial Review

No editorial reviews found

Customer Reviews & Ratings

5.0
1 customers ratings
  • 5 Star
    100%
  • 4 Star
    0%
  • 3 Star
    0%
  • 2 Star
    0%
  • 1 Star
    0%

Review this product

Share your thoughts with other customers

Platform Trust & Buyer Confidence

trustpilot logo
4.3/5 9,000 + reviews
Read reviews
MT
Mohd
Verified buyer

“The product received very good packaging & safe…Thank You”

16 June 2026 · via Trustpilot
SJ
Shawati
Verified buyer

“Accurate delivery timing given”

16 June 2026 · via Trustpilot
YB
Youcef
Verified buyer

“Not madly expensive like I thought, and much quicker than promised.”

15 June 2026 · via Trustpilot
LM
Leila
Verified buyer

“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”

6/7/2026 · via Trustpilot
KA
Kwame
Verified buyer

“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”

12 June 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.

NAD 1138

Order now and get it around Monday, July 27

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

  • Advanced sensing technology minimizes false alarms from cooking.
  • Dual smoke sensor technology optimally detects smoldering and fast flaming fires.
  • Interconnects with most First Alert and BRK alarms for comprehensive alerting.
  • Latching Alarm Indicator shows which unit triggered the alarm or low battery.
  • Battery backup ensures protection during power outages.
  • Test/Silence button allows for easy testing and temporary silence of 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.