First Alert
0 ratings
First Alert Hardwire Smoke Alarm, Dual Sensor
genuine image
First Alert Hardwire Smoke Alarm, Dual Sensor
Featuring advanced sensing technology and dual smoke sensors for reliable protection from fast flaming and slow smoldering fires.
First Alert Hardwire Smoke Alarm, Dual Sensor
Item #: 220873152

First Alert Hardwire Smoke Alarm, Dual Sensor

88% of respondents would recommend this to a friend

Item #: 220873152

LSL 5724

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 Friday, September 11
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
Featuring advanced sensing technology and dual smoke sensors for reliable protection from fast flaming and slow smoldering fires.
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
Combines ionization and photoelectric sensors to detect both fast and slow-burning fires, enhancing safety by providing comprehensive fire protection.
10-Year Battery
Equipped with a sealed 10-year battery, eliminating the need for battery replacements, ensuring reliable operation and peace of mind for a decade.
Test & Silence Button
Features an easy-to-access test and silence button, allowing users to conveniently verify functionality and silence nuisance alarms without hassle.

Product Details

Shop First Alert Hardwire Smoke Alarm, Dual Sensor online at a best price in Lesotho. B0FCRWBWNH
BrandFirst Alert
Model NumberSM300-AC
Unit Count6 Count
Number of Items6
ManufacturerResideo
UPC029054021991
Built-In MediaEasy Adapter Plug, AA Batteries
Item Type NameSmoke Alarm
Mfr Part NumberSM300-AC
Power SourceCorded Electric
AlarmSmoke
Sensor TypePhotoelectric, Ionization
Product StylePrecision Detection
ColorWhite
Item Dimensions D x W x H4"D x 4"W x 2"H (10.2 x 10.2 x 5.1 cm)
Item Weight11.2 ounces (317.52 grams)
StylePrecision Detection
Product Dimensions (L x W x H)4"D x 4"W x 2"H (10.2 x 10.2 x 5.1 cm)

Who Should Buy?

Suitable For
  • Homeowners

    Ideal for homeowners seeking reliable fire detection without the hassle of battery replacement for ten years.

  • Apartment Dwellers

    Perfect for apartment residents who need a compact, easy-to-install smoke alarm with dual sensor technology for enhanced protection.

  • Elderly Individuals

    Suitable for seniors who may struggle with battery maintenance, providing long-term safety and peace of mind.

Not Suitable For
  • DIY Enthusiasts

    Not suitable for those who prefer customizable alarms, as this model has a one-size-fits-all approach.

Product Description

First Alert Hardwire Smoke Alarm, Dual Sensor

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What features does the First Alert SM310 Smoke Alarm offer?

    Answer: The First Alert SM310 Smoke Alarm includes dual sensors that detect both fast-burning and smoldering fires, ensuring comprehensive protection. Additionally, it features a sealed battery that lasts for a decade, eliminating the need for frequent battery replacements. The test and silence button allows users to easily check functionality and silence false alarms. This smoke detector is ideal for residential use, providing peace of mind while protecting your home from fire hazards.
  • Question: How does the dual sensor technology work in this smoke alarm?

    Answer: The dual sensor technology in the First Alert SM310 enhances safety by utilizing both photoelectric and ionization sensors. Photoelectric sensors are particularly effective at detecting smoldering fires, which often produce more smoke than flames. In contrast, ionization sensors are better at sensing fast-flaming fires. By combining these technologies, the sensor effectively identifies a wider range of fire types, making it an essential safety addition to any home, especially in high-risk areas like kitchens or garages.
  • Question: How can I test the functionality of the First Alert SM310 Smoke Alarm?

    Answer: You can test the functionality of the First Alert SM310 Smoke Alarm by pressing the test button, which is conveniently located on the unit. This will simulate smoke entry and trigger the alarm, letting you know it’s operational. Regular testing is crucial; doing this monthly is recommended to ensure your smoke alarm is ready in case of an emergency. This simple maintenance step is vital for maintaining home safety.
  • Question: What are the installation requirements for the First Alert SM310?

    Answer: Installing the First Alert SM310 Smoke Alarm is straightforward. You can mount it on walls or ceilings with the provided hardware. It is recommended to install smoke alarms in every bedroom and on each level of your home, especially near sleeping areas, to ensure optimal protection. This smoke detector should be installed away from kitchens to minimize false alarms while still providing coverage against potential smoke from fires.
  • Question: What should I do if the alarm goes off unexpectedly?

    Answer: If the First Alert SM310 Smoke Alarm goes off unexpectedly, first ensure that it's not triggered by cooking smoke or steam. Press the silence button to quiet the alarm temporarily, and check for any signs of smoke or fire. If the alarm persists and there is no identifiable cause, evacuate the premises immediately and call local emergency services. Understanding how to react will help keep you and your loved ones safe during an emergency.
  • Question: Is the First Alert SM310 smoke alarm suitable for use in all environments?

    Answer: The First Alert SM310 smoke alarm is designed for residential environments, but specific locations should be avoided for optimal performance. It should not be installed in excessively humid areas, like bathrooms, or near kitchens where cooking smoke can trigger false alarms. Installing in hallways and near sleeping areas ensures you have adequate coverage while minimizing nuisance alarms, as it enables early warning in the event of a fire.
  • Question: What is the lifespan of the First Alert SM310 Smoke Alarm?

    Answer: The First Alert SM310 Smoke Alarm is equipped with a sealed battery designed to provide power for ten years. After this period, regardless of whether the alarm has been activated, the unit should be replaced to ensure that you are always protected. Regularly replacing smoke alarms after their specified lifespan is essential in maintaining your home's safety and ensures you remain compliant with fire safety regulations.
  • Question: Can I install the First Alert SM310 smoke alarm by myself?

    Answer: Yes, you can install the First Alert SM310 smoke alarm by yourself, as it comes with clear instructions and all necessary mounting hardware. The process typically involves affixing the mounting bracket to the ceiling or wall and securing the device in place. If you follow the installation guidelines correctly, it’s a user-friendly task. This can be an excellent way for homeowners to take charge of their fire safety while learning more about smoke alarms.
  • Question: How often should I replace the First Alert SM310 Smoke Alarm?

    Answer: You should replace the First Alert SM310 Smoke Alarm after ten years from the date of manufacture, which is indicated on the back of the device. This ensures that the sensor technology remains effective and reliable. Keeping track of this timeline is crucial; you can set reminders in your calendar to regularly check your safety devices and initiate timely replacements, promoting a safer living environment.
  • Question: Where can I buy the First Alert SM310 Smoke Alarm?

    Answer: You can buy the First Alert Smoke Alarm, 10-Year Sealed Battery Dual Sensor Detector with Test & Silence Button, SM310, 1-Pack from Ubuy in Lesotho. Ubuy offers a convenient shopping experience, ensuring you can easily find and purchase this essential safety device for your home.

First Alert Smoke Detectors & Fire Alarms SM300-AC Editorial Review

No editorial reviews found

Customer Reviews & Ratings

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
4.2/5 9250 + reviews
Read reviews
MA
Mohammad
Verified buyer

“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”

23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer

“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”

22-Jul-26 · via Trustpilot
K
kund
Verified buyer

“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”

23-Jul-26 · via Trustpilot
OO
Onesi
Verified buyer

“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”

22 July 2026 · via Trustpilot
SJ
SAO JOHN
Verified buyer

“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”

23 July 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.

LSL 5724

Order now and get it around Friday, September 11

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

  • Meets new industry standards with advanced sensing technology.
  • Dual sensors protect against both fast flaming and slow smoldering fires.
  • 10-Year sealed battery eliminates hassle of battery replacements.
  • No more low battery chirps for the life of the alarm.
  • Includes test/silence button for quick and easy functionality check.
  • End-of-life warning alerts you when it's time to replace 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.