#1 Home Improvement Retailer

Internet # 334547138

Model # USI/SM/HWREP

Store SKU # 1013748583

Exclusive

Hardwired and 1-Year Battery Backup Smoke Detector with Photoelectric Sensor

$26.97
Apply Now
Pay $1.97 after $25 OFF your total qualifying purchase upon opening a new card. 
Apply for a Home Depot Consumer Card
  • UL certified for safety and reliability
  • Durable design with 10-year warranty
  • View More Details

Free & Easy Returns In Store or Online

Return this item within 90 days of purchase.

Read Return Policy

Ask about this product

Get an answer now with AI

AI-generated from the text of manufacturer documentation. To verify or get additional information, please contact The Home Depot customer service.

Product Details

About This Product

Experience unparalleled protection with the USI Hardwired Smoke Alarm with Replaceable Battery Backup. Equipped with Sensing Plus Multi-Criteria Detection, this advanced photoelectric alarm accurately identifies both slow-burning and fast-flaming fires, ensuring early detection and rapid response. This hardwired alarm connects to other hardwired alarms in the home to provide comprehensive coverage throughout the space. An included replaceable 9-Volt battery ensures continuous protection even during outages. An End-of-life alert reminds you it's time to replace your smoke alarm after 10-years for uninterrupted coverage. Advanced technology reduces nuisance alarms, minimizing disruptions from activities like cooking. Should you experience a false alarm, easily silence it with the test/silence button. With UL certification, you can trust in the reliability and performance of USI Hardwired Smoke Alarms. Invest in peace of mind and protect your loved ones with this advanced home safety solution. With over 50-years of experience as a leader in home safety, USI provides reliable, long-lasting protection for your home.

Highlights

  • Click here to view the Entire Universal Security Instruments assortment
  • Sensing plus multi-criteria detection accurately identifies both slow-burning and fast-flaming fires
  • Interconnected alarms - for optimal safety, once 1-alarm sounds, every compatible device will sound
  • Replaceable backup battery - ensures continuous protection even during power outages
  • Superior false alarm resistance - reduces nuisance alarms, minimizing disruptions
  • Meets the requirements of leading safety organizations: underwriters laboratories (UL) 217 9th edition, federal housing authority (FHA), housing and urban development (HUD), and the national fire protection association (NFPA)
  • Easy Installation- Simple setup for hassle-free installation
  • A low battery chirp alerts you when batteries need replacing
  • Dust/Paint Cover: Protects the alarm during construction or renovations
  • 85 decibel alarm can easily be heard from a distance or wake family members from sleep for fast response
  • 10-year limited warranty on alarms
  • Click here for more information on Electronic Recycling Programs
  • Return Policy

Product Information

Internet # 334547138

Model # USI/SM/HWREP

Store SKU # 1013748583

Specifications

Dimensions

Product Depth (in.)

1.5 in

Product Width (in.)

5.6 in

Details

Alarm Sensor Type

Photoelectric

Alarm/Detector Features

Battery Back-Up, Hush Button, Light Indicator, Tamper Resistant

Alert Type

Siren

Commercial/Residential

Home

Included

Batteries, Installation Kit, Mounting Hardware, Owner's Manual

Pack Size

1

Power Source

Hardwired

Returnable

90-Day

Voltage (V)

120 V

Warranty / Certifications

Certifications and Listings

ETL Listed

Questions & Answers

After install, I am getting the consistent blinking red light on all seven of my new units, same as the user "Mike" has shared here. I've contacted parent company Fiet Electric and followed their troubleshooting tips to no avail.
ByJul 7, 2026
0 Answer | 
Answer This Question

The description says "With UL certification, you can trust in the reliability and performance of USI Hardwired Smoke Alarms." Does the alarm have UL Certification or ETL Certification. Two very different distinctions. I know ETL certifies to meet UL.
ByJun 9, 2026
1 Answer | 
Answer This Question

Thank you for your question, this unit is UL Certified. When it comes to product safety in the United States, there are no practical differences between ETL and UL. Both are OSHA-recognized Nationally Recognized Testing Laboratories that test and certify products to the exact same federal safety standards.ETL (owned by Intertek) does not write its own testing standards. Instead, they test products using the exact same safety standards originally developed by UL (Underwriters Laboratories).

By|Jun 19, 2026

    (1)

    Is this model comparable to a usi 1204
    ByMay 28, 2026
    1 Answer | 
    Answer This Question

    Thank you for your question, The existing wiring harness/connector may or may not match exactly. In many cases, you’ll need to swap the included quick-connect harness onto the house wiring. If your alarms are interconnected, verify all connected alarms are compatible after installation and test the entire system.

    By|May 29, 2026


      Will this model replace my Kiddie i2060a
      ByMay 9, 2026
      1 Answer | 
      Answer This Question

      Thank you for your question, we do not suggest these units be mixed with other brands.

      By|May 11, 2026


        I currently have USI 5204 installed. I need to replace them. Will this unit snap into the existing mounting base the 5204 uses?
        ByMay 6, 2026
        1 Answer | 
        Answer This Question

        Thank you for your question, it is recommended to use the base and wiring included with the product.

        By|May 7, 2026


          My place is seasonal and I shut the electric off when not there. Is the battery easily removable without any disassembly?
          ByFeb 26, 2026
          2 Answers | 
          Answer This Question

          Thank you for your question, yes you can remove but twist to unlock.

          By|Mar 6, 2026

            Yes. The device twists off the wall and you can access the battery.

            By|Mar 2, 2026


              Is this model equal to model 5304?
              ByFeb 9, 2026
              1 Answer | 
              Answer This Question

              Thank you for your question, this unit is not suggested to be mixed with other units.

              By|Feb 12, 2026


                What type of replaceable battery does it use.
                ByJan 24, 2026
                1 Answer | 
                Answer This Question

                Thank you for your question, this unit comes with a 9V battery.

                By|Jan 26, 2026


                  Viewing 1-8 of 15

                  Customer Reviews

                  4.4 out of 5

                  • 4.4 out of 117 reviews
                  • 93% recommend this product
                  Filter by:
                  Showing 1-10 of 117 reviews
                  This customer chose to rate the product and not provide text.
                  by
                  This smoke detector was well-packaged, included all the parts necessary to mount it to a wall or ceiling, a quick-connect pigtail with wire nuts for quick and easy connection to the existing 120V wiring, a wire for optional interconnection to other alarms in the circuit, and a backup battery in the event of a power interruption. This alarm also features 'test' and 'silence' features. Installation was simple and quick and the price was great. Well done, Universal Security Instruments!
                  by
                  Great easy to install smoke detector
                  The Universal security instruments 2 in 1 smoke and fire alarm sensing plus smoke detector seems to be a good device. These came 3 to a pack. They have a 9 volt battery back up. The instructions were simple to follow and the hook up was a piece of cake. We just removed our old one and wired this directly in and tested it. The dogs went nuts because being wired in it is linked to all the smoke detectors through out the house and therefore when one goes off they all go off.
                  by
                  Response from Product ExpertAug 21, 2025
                  Thank you for your feedback and for choosing Universal Security Instruments products for your needs.
                  • Recommended
                  Easy install
                  Ease of installation was a breeze. The alarms came in a box of 3 with a backup battery and mounting screws. Nice white color. Its blends nicely with the ceiling. Additionally, it was nice that it came with an interconnection so that i could link the alarm to the others in my home. Once installed the test activated all of the other firealarms in the house to verify it was worki g properly. I will say that I wish i could change out the battery without having to remove the smoke detector from its mount.
                  by
                  Response from Product ExpertAug 21, 2025
                  Thank you for your feedback and for choosing Universal Security Instruments products for your needs.
                  • Recommended
                  Full function Smoke & Fire Alarm
                  Not your standard smoke alarm, this unit also senses fire that may not be putting off visible smoke. The unit came complete with a wiring harness, dust cover and battery for the backup function should power go out. I installed it using the existing dedicated circuit for my home and replaced the end-of-life unit we had outside our bedrooms. This unit also links to other units on the circuit, so if one goes off, they all will sound. Testing confirmed this feature. It is plenty loud!
                  by
                  Response from Product ExpertAug 21, 2025
                  Thank you for your feedback and for choosing Universal Security Instruments products for your needs.
                  • Recommended
                  Kt
                  Best detectors on the market so far! This works perfectly like a champ! They do have sensing plug multi criteria detection! And also it interconnects its 2in1 smoke & fire alarm It is hardwired and replaceable battery backup it looks very nice and works perfectly so far! If you’re in the market for interconnected alarms this is the one to go with! No hesitation
                  by
                  Response from Product ExpertAug 21, 2025
                  Thank you for your feedback and for choosing Universal Security Instruments products for your needs.
                  • Recommended
                  Great quality and easy to install.
                  This review is for the Universal 2 in 1 two, smoke and fire alarm with sensing plus. This alarm is designed to be wired and has a battery backup. It can work Interconnected with your other Smoke/Fire Alarms or in Stand Alone Mode. I installed it in Stand Alone mode. This smoke alarm is solid, higher quality than that came with the house. Best of all it is so easy to install. It took me less than 15 minutes and that includes taking down the old alarm. I plan to replace all my Smoke Alarms, as they are old and have aged technology. This alarm has a multi criteria detection system, using an advanced algorithm that detects both slow smoldering smoke and fast burning fires with greater accuracy. In addition fewer false alarms. I highly recommend this Smoke/Fire Alarm.
                  by
                  Response from Product ExpertAug 21, 2025
                  Thank you for your feedback and for choosing Universal Security Instruments products for your needs.
                  • Recommended
                  Does the Job
                  Got this hardwired smoke and fire alarm to replace an old one I had in the basement. Upon installing, I first noticed the mounting plate was different from the previous brand that I was using. That was a small inconvenience. I then realized my previous device was both a smoke/fire and carbon monoxide detector. This one doesn't function as carbon monoxide, but that is not particularly important in my scenario. Other than that, the unit plugged in without issue and functioned as expected. It seems to do the job and I haven't had any issues since installing.
                  by
                  Response from Product ExpertAug 21, 2025
                  Thank you for your feedback and for choosing Universal Security Instruments products for your needs.
                  • Recommended
                  3 pk smoke detectors
                  These are 3 wired smoke detectors, very easy to install. These are not very big compared to older models. I really like that they come with a stretch plastic cover to protect it during construction. If you are not aware the 3 wired allows them to connect to each other so if one detects smoke all will alarm. Really nice looking detectors also and I highly recommend this product.
                  by
                  Response from Product ExpertAug 21, 2025
                  Thank you for your feedback and for choosing Universal Security Instruments products for your needs.
                  • Recommended
                  Does what it says it will.
                  This smoke and fire detector is exactly what I needed. It is plain and simple and does its job with no frills. I was able to remove my old detector and wire this one in under 5 minutes total. It is also linked to all other detectors in my house. I tested it after install and it does communicate with all other alarms. I've had it installed for a few weeks now and have not gotten a single false alarm from steam in the kitchen. My old alarm went off during cooking all the time, but this one doesn't. The test button is also large and easy to press if the alarm does go off. It also came with the mounting bracket and hardware so all you need is wire connectors and a screwdriver. Overall I'm happy with this detector.
                  by
                  Response from Product ExpertAug 21, 2025
                  Thank you for your feedback and for choosing Universal Security Instruments products for your needs.
                  • Recommended
                  Showing 1-10 of 117 reviews

                  Compare Key Features

                  current item

                  Product Snapshot

                  Ideal for homeowners looking for interconnected alarms, ensuring comprehensive fire protection throughout the home.
                  Ideal for homeowners looking for enhanced fire safety, making escape easier with interconnected alarms and battery backup.
                  Ideal for homeowners seeking enhanced fire safety with interconnected alarms and a 10-year battery backup, ensuring continuous protection.
                  Ideal for safety-conscious homeowners needing voice alerts and interconnected alarms, ensuring comprehensive fire protection.

                  Sensor Type

                  Photoelectric
                  Photoelectric
                  Ionization
                  Photoelectric

                  Interconnectivity

                  Battery Backup

                  9V replaceable battery backup
                  Two AA alkaline batteries
                  10-year sealed backup battery
                  10-year built-in lithium battery backup

                  Smart Home Integration

                  Voice Alerts