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Internet # 334547710

Model # USI/SM/HW10YR/3

Store SKU # 1013850490

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(3-Pack) Hardwired & 10-Year Battery Backup Smoke Detector with Ionization Sensor

Includes 3 units
$115.00
($38.33 /unit)
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  • Hardwired smoke alarm with ionization sensor
  • End-of-life alerts for reminders
  • Quick find origination pinpoints source of fire
  • View More Details

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Product Details

About This Product

Experience unparalleled protection with the USI Hardwired Smoke Alarm with 10-Year Battery Backup. Equipped with Sensing Plus Multi-Criteria Detection, this advanced ionization alarm accurately identifies both slow-burning and fast-flaming fires, ensuring early detection and rapid response. This hardwired alarm connects to other compatible hardwired alarms in the home to provide comprehensive coverage throughout the space, while Quick-Find Alarm Origination pinpoints the source of the alarm. The 10-Year Backup Battery ensures continuous protection and replaces annoying low-battery chirps with a single end-of-life alert after 10 years to remind you it's time to replace your smoke alarm. 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 one alarm sounds, every compatible device will sound
  • Quick-Find Alarm Origination- Easily pinpoints the source of the alarm
  • 10-Year Sealed Backup Battery- Eliminates low battery concerns and ensures continuous protection
  • End-of-Life Alerts- Provides timely reminders for alarm replacement
  • Superior False Alarm Resistance- Reduces nuisance alarms, minimizing disruptions
  • Meets the requirements of leading safety organizations: Underwriters Laboratories (UL) 217 8th 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
  • Tamper-proof alarm design engineered to prevent unauthorized removal, disassembly, or battery access
  • 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 # 334547710

Model # USI/SM/HW10YR/3

Store SKU # 1013850490

Specifications

Dimensions

Product Depth (in.)

1.5 in

Product Width (in.)

5.6 in

Details

Alarm Sensor Type

Ionization

Alarm/Detector Features

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

Alert Type

Siren

Commercial/Residential

Home

Included

Battery Back-Up, Installation Kit, Mounting Hardware, Owner's Manual

Pack Size

3

Power Source

Hardwired

Returnable

90-Day

Voltage (V)

120 V

Warranty / Certifications

Certifications and Listings

ETL Listed

Questions & Answers

Can I replace all my S1810 with this model (base) this is the first time I have had to replace them.
ByApr 1, 2026
1 Answer | 
Answer This Question

Thank you for your question, this unit comes with its own mounting hardware. We do not suggest the unit be used mixed with older generations for interconnection will not be compatible.

By|Apr 2, 2026


    Can this unit replace a usi-1208 smoke detector?
    ByApr 1, 2026
    1 Answer | 
    Answer This Question

    Thank you for your question, this unit comes with its own mounting hardware. We do not suggest the unit be used mixed with older generations for interconnection will not be compatible.

    By|Apr 2, 2026


      Is it compatible with model i12060a
      ByMar 14, 2026
      1 Answer | 
      Answer This Question

      Thank you for your question, this unit is not compatible with i12060a.

      By|Mar 17, 2026


        These units claim to be dual sensing. Does this mean the use both ionization sensors and photoelectric sensor to detect both rapid and slow fires? I need to be sure they dont have photoelectric sensors.
        ByMar 1, 2026
        1 Answer | 
        Answer This Question

        Thank you for your question, this unit is both photoelectric and ionization.

        By|Mar 5, 2026


          I saw the answer to the question about the usi 1204 and I’m a little confused. Can i replace all of my 1204 detectors with these? Basically, are the screw mounts the same size as the 1204
          ByFeb 13, 2026
          1 Answer | 
          Answer This Question

          Thank you for your question, the wiring harness and base are not compatible between these two models.

          By|Feb 17, 2026


            Can I use the wire harness from the smoke detector that I'm replacing? The plug prongs are exactly the same and it's a pain to reach all the wire nuts, untwist them and then reverse process whilst standing on a ladder reaching up! I'm 70 years young....
            ByJan 31, 2026
            1 Answer | 
            Answer This Question

            Thank you for your question, yes you can replace the same model number using the same fittings.

            By|Feb 4, 2026


              Can this model replace USI-1204
              ByJan 23, 2026
              1 Answer | 
              Answer This Question

              Thank you for your question, no these are not compatible. UL 217 6th Edition hardwired ionization alarms are not directly compatible or interchangeable with UL 217 8th Edition alarms. These models differ significantly in performance standards, testing requirements, and detection technology, particularly in how they respond to smoldering fires and modern nuisance sources. For proper operation, all alarms on the same interconnect line must match. When replacing older hardwired alarms, we recommend replacing all devices in the interconnected system to ensure full compatibility and reliable communication between units.

              By|Jan 23, 2026


                Will these work with other brand smoke detectors?
                ByDec 21, 2025
                1 Answer | 
                Answer This Question

                Thank you for your question, we recommend upgrading to one of our updated models.

                By|Dec 23, 2025


                  Viewing 1-8 of 11

                  Customer Reviews

                  4.2 out of 5

                  • 4.2 out of 56 reviews
                  • 0% recommend this product
                  Filter by:
                  Showing 1-10 of 56 reviews
                  Scam of a company
                  They don’t last 10 years try about 6 and then they won’t back the product because they claim the company has changed hands and are no longer liable… don’t waste your money on these people…
                  by
                  Response from Product ExpertJul 6, 2026
                  Thank you for your feedback, we are sorry to hear about the issue with your product. At your convenience feel free to contact us before returning to your retailer, please contact customer service at info@universalsecurity.com for assistance.
                    This customer chose to rate the product and not provide text.
                    by
                    • Verified Purchase
                    1 found this review helpful
                    This customer chose to rate the product and not provide text.
                    by
                    • Verified Purchase
                    Universal Security Instruments-the manufacturer identified here--does not exist anymore
                    Potential buyers should know the following taken from an email I received while submitting a waranty claim for two of these units manufactured in 2022 and 2023: "Thank you for reaching out about your Universal Security Instruments home safety product. Please note that the model in question is from an older generation that is no longer in production. Additionally, Universal Security Instruments, Inc. is no longer in operation. The brand has recently been acquired by Feit Electric. However, Feit Electric acquired only certain assets of the company and did not assume any of its liabilities. As such, legacy units are no longer available for replacement, and we did not manufacture the original models." Whether and why one should rely upon these "10 year" units now when those manufactured just two years ago by the company Feit has acquired are already failing is not explained. Please note that current Feit Electric units are not compatible with older USI fittings. For continued protection, we recommend upgrading to one of our updated models. You can view available options here:
                    by
                      10 found this review helpful
                      It is as nice to have a straight up replacement for an older USI smoke alarm. No drilling or rewiring was needed. The 10 year battery is a nice feature, even though it gave out after 8 years. Still didn't need to replace a battery every year.
                      by
                      • Verified Purchase
                      This customer chose to rate the product and not provide text.
                      by
                      • Verified Purchase
                      Easy to install. would h
                      by
                      • Verified Purchase
                      Perfect replacement. Was not available in store.
                      by
                      • Verified Purchase
                      I had to replace my Kidde detectors - installation was seamless, even with switching out the base plates and quick connectors. Great price and hoping they perform just as good!!
                      by
                      • Verified Purchase
                      This customer chose to rate the product and not provide text.
                      by
                      • Verified Purchase
                      Showing 1-10 of 56 reviews

                      Compare Key Features

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                      Product Snapshot

                      Ideal for homeowners seeking interconnected alarms with battery backup, ensuring comprehensive fire protection.
                      Ideal for homeowners seeking enhanced safety with interconnected voice alerts, 10-year battery backup, and superior false alarm resistance.

                      Sensor Type

                      Ionization
                      Photoelectric

                      Interconnectivity

                      Battery Backup

                      10-Year Sealed Backup Battery
                      10-year sealed backup battery

                      Smart Home Integration

                      Voice Alerts